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From Citizendium, the Citizens' Compendium
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| All-in-One PC | All-in-One PC/Approval | Allan Nevins |
| Allan Nevins/Approval | Allan Ramsay | Allan Ramsay/Definition |
| Allan Ramsay/External Links | Allan Ramsay (1686-1758)/Definition | Allegheny Portage Railroad |
| Allegheny Portage Railroad/Approval | Allele | Allele/Approval |
| Allele/Definition | Allelopathy | Allelopathy/Approval |
| Allen's rule | Allen's rule/Approval | Allen W. Dulles |
| Allen W. Dulles/Approval | Allergic rhinitis | Allergic rhinitis/Approval |
| Alliance of the Orders of St John of Jerusalem | Alliance of the Orders of St John of Jerusalem/Definition | |
| Alliance of the Orders of St John of Jerusalem/Related Articles | Allocative efficiency/Definition | Allopatric speciation |
| Allopatric speciation/Approval | Allotrope | Allotrope/Approval |
| Allotrope/Definition | ||
| Allotropy/Approval | Allozymes | |
| Allozymes/Approval | Almond Pressed Duck | |
| Almond Pressed Duck/Approval | Almond Pressed Duck/Definition | Almost sure convergence |
| Almost sure convergence/Approval | Almost sure convergence/Bibliography | Almost sure convergence/Definition |
| Almost sure convergence/Related Articles | Aloutte helicopter | Alpha Andromedae |
| Alpha Andromedae/Definition | Alpha Aquarii | Alpha Aquarii/Definition |
| Alpha decay | Alpha decay/Approval | Alpha decay/Definition |
| Alpha decay/Related Articles | Alphabet | Alphabet/Approval |
| Alphard | Alphard/Approval | Alphard/Definition |
| Alps | Alps/Approval | |
| Alps/Catalogs | Altan | |
| Altan/Bibliography | Altan/Definition | Altan/External Links |
| Altan/Related Articles | Altan/Video | |
| Alternative medicine | Alternative medicine/Approval | Alternative medicine/Definition |
| Alternative medicine/Related Articles | Altitude | Altitude/Approval |
| Altitude/Definition | Altruism | Altruism/Approval |
| Altruism/Definition | Aluminum | |
| Aluminum/Approval | Aluminum/Atomic mass | Aluminum/Atomic number |
| Aluminum/Atomic symbol | Aluminum/Boiling point | Aluminum/Definition |
| Aluminum/Electron configuration | Aluminum/Electronegativity | Aluminum/Elemental Class |
| Aluminum/Related Articles | Aluminum/Standard phase | Alvar Núńez Cabeza de Vaca/Definition |
| Alvin Goldman | Alvin Goldman/Definition | Alvin Hansen |
| Alvin Hansen/Approval | Alvin M. Liberman | Alvin M. Liberman/Approval |
| Alvise Cadamosto | Alvise Cadamosto/Approval | |
| Alzheimer's disease | Alzheimer's disease/Approval | Alzheimer's disease/Definition |
| Alzheimer's disease/Related Articles | Ama Ata Aidoo | Amancio Ortega |
| Amancio Ortega/Approval | Amanita phalloides | |
| Amanita phalloides/Approval | Amaranth | Amaranth/Approval |
| Amaryllis | Amaryllis/Approval | Amateur Computer Group of New Jersey |
| Amateur Computer Group of New Jersey/Approval | Amateur radio | Amateur radio/Approval |
| Amateur radio/Catalogs | Amateur radio/Catalogs/USA | Amateur radio/External Links |
| Amazon | Amazon Rainforest/Definition | Amazon River/Definition |
| Amazonas | Amazons/Definition | |
| Ambassador | Ambassador/Definition | Amber House |
| Amber House/Approval | Amber Neben | Amber Neben/Approval |
| Amber Neben/Definition | Ambiguity tolerance | Ambiguity tolerance/Approval |
| Ambush | Ambush/Definition | Amedeo Avogadro |
| Amedeo Avogadro/Approval | Amedeo Avogadro/Definition | AmeriCorps |
| AmeriCorps/Approval | ||
| America (disambiguation) | American Chemical Society | |
| American Chemical Society/Approval | American Chemical Society/Definition | American Chemical Society/Related Articles |
| American Civil Liberties Union | American Civil Liberties Union/Approval | American Civil Liberties Union/Definition |
| American College of Physicians | American College of Physicians/Approval | |
| American Conservatism/Approval | American Conservatism/Related Articles | |
| American Cryonics Society | American Cryonics Society/Approval | American Cryonics Society/Definition |
| American Cryonics Society/External Links | American Cryonics Society/Related Articles | |
| American English | American English/Approval | |
| American English/Definition | American Expeditionary Forces | American Fair-play rules |
| American Fair-play rules/Approval | American Federation of Labor | American Federation of Labor/Approval |
| American Institute of Chemical Engineers | American Institute of Chemical Engineers/Approval | |
| American Institute of Chemical Engineers/Bibliography | American Institute of Chemical Engineers/Definition | American Institute of Chemical Engineers/Draft |
| American Institute of Chemical Engineers/External Links | American Institute of Chemical Engineers/Related Articles | American Liberty League |
| American Liberty League/Approval | American Liberty League/Bibliography | American Liberty League/Definition |
| American Oriental Society | American Oriental Society/Approval | American Oriental Society/Definition |
| American Psychiatric Association | American Psychiatric Association/Approval | American Psychiatric Association/Definition |
| American Psychiatric Association/External Links | American Red Cross/Definition | American Registry for Internet Numbers |
| American Registry for Internet Numbers/Definition | American Registry for Internet Numbers/External Links | American Registry for Internet Numbers/Related Articles |
| American Revolution | ||
| American Revolution, military history | American Revolution, military history/Approval | |
| American Revolution, military history/Bibliography | American Revolution, naval history | American Revolution, naval history/Approval |
| American Revolution, naval history/Bibliography | American Revolution/Approval | American Revolution/Bibliography |
| American Revolution/Definition | ||
| American conservatism | ||
| American conservatism/Approval | American conservatism/Bibliography | American conservatism/Definition |
| American conservatism/External Links | American conservatism/Related Articles | |
| American cuisine | American cuisine/Approval | American cuisine/Bibliography |
| American cuisine/Catalogs | American cuisine/External Links | American election campaigns, 19th century |
| American election campaigns, 19th century/Approval | American football | |
| American football/Approval | American football/Definition | American football/External Links |
| American football/Related Articles | American football strategy | |
| Americas (disambiguation) | ||
| Americium/Atomic mass | Americium/Atomic number | |
| Americium/Atomic symbol | Americium/Boiling point | Americium/Electronegativity |
| Americium/Elemental Class | Americium/Standard phase | |
| Amherst, Massachusetts | Amherst, Massachusetts/Approval | Amikacin |
| Amikacin/Approval | Amikacin/Definition | Amine |
| Amine/Approval | Amine/Definition | |
| Amine gas treating | Amine gas treating/Approval | Amine gas treating/Bibliography |
| Amine gas treating/Definition | Amine gas treating/Draft | Amine gas treating/External Links |
| Amine gas treating/Related Articles | Amino acid | |
| Amino acid/Approval | Amino acid/Bibliography | Amino acid/Definition |
| Aminoglycoside | Aminoglycoside/Approval | |
| Aminoglycoside/Definition | Amish | Amish/Bibliography |
| Amish/Definition | Amish/External Links | Amish/Related Articles |
| Amistad Mutiny | ||
| Amma Darko | ||
| Amma Darko/Approval | Amma Darko/Definition | |
| Ammonia production | Ammonia production/Approval | |
| Ammonia production/Bibliography | Ammonia production/Definition | Ammonia production/Draft |
| Ammonia production/External Links | Ammonia production/Related Articles | |
| Ammunition ship | Ammunition ship/Approval | Amnesia/Definition |
| Amniote (Amniota) | Amores perros | Amores perros/Approval |
| Amoxicillin | Amoxicillin/Approval | Amoxicillin/Bibliography |
| Amoxicillin/Definition | ||
| Ampere's equation | Ampere's equation/Approval | |
| Ampere's equation/Definition | Ampere's law | Ampere's law/Approval |
| Ampere's law/Definition | Ampere's rule | Ampere's rule/Approval |
| Ampere's rule/Definition | Ampere/Approval | Ampere (disambiguation) |
| Ampere (unit) | Ampere (unit)/Approval | Ampere (unit)/Definition |
| Amphetamine | Amphetamine/Approval | |
| Amphetamine/Bibliography | Amphetamine/Definition | Amphetamine/External Links |
| Amphetamine/Related Articles | Amphibious Ready Group/Definition | |
| Amphibious ready group | Amphibious ready group/Definition | Amphibious warfare |
| Amphibious warfare/Definition | Amphibious warfare/Related Articles | Amphiboly |
| Amphiboly/Approval | Amphiboly/Definition | Ampicillin |
| Ampicillin/Approval | Ampicillin/Definition | |
| Amplification (disambiguation) | Amplification (psychology) | Amplification (psychology)/Approval |
| Amplification (psychology)/Definition | Amplitude modulation | |
| Amplitude modulation/Definition | Amplitude modulation/Related Articles | Amprenavir |
| Amprenavir/Approval | Amprenavir/Definition | |
| Amrita | ||
| Amrita/Approval | Amritanandamayi | Amritanandamayi/Approval |
| Amsterdam | Amsterdam/Approval | Amsterdam/Definition |
| Amsterdam/Gallery | Amstrad | Amstrad/Definition |
| Amstrad/External Links | Amstrad/Related Articles | |
| Amygdala/Bibliography | An elementary proof that 22 over 7 exceeds π | |
| An elementary proof that 22 over 7 exceeds π/Approval | Anabolic steroids | Anabolic steroids/Approval |
| Anabolic steroids/Definition | Anabolism | Anabolism/Approval |
| Anal scale | Anal scale/Approval | |
| Anal scale/Definition | AnalyticTetrationBaseSqrt2u00/code | AnalyticTetrationBaseSqrt2v00 |
| AnalyticTetrationBaseSqrt2v00/code | Analytic Hierarchy Process | Analytic Hierarchy Process/Approval |
| Analytic Hierarchy Process/Bibliography | Analytic Hierarchy Process/External Links | Analytic Hierarchy Process/Related Articles |
| Analytic Hierarchy Process/more | Analytic Network Process | Analytic Network Process/Approval |
| Analytic philosophy | Anandpuri Ji | |
| Anandpuri Ji/Approval | Anarchism | |
| Anarchism/Approval | Anarchism/Definition | Anarchism/Related Articles |
| Anarchy | Anarchy/Approval | |
| Anarchy/Definition | Anatolian Shepherd Dog | |
| Anatolian Shepherd Dog/Approval | Anatolian Shepherd Dog/Definition | |
| Anatoly Marchenko | Anatoly Marchenko/Approval | Anatoly Marchenko/Bibliography |
| Anatoly Marchenko/External Links | Anatoly Marchenko/Quotations | Anatoly Marchenko/Related Articles |
| Anatoly Marchenko/Works | Anatomy | Anatomy/Approval |
| Anatomy/Definition | Anaximander | Anaximander/Definition |
| Anaximander/Related Articles | Anaximenes/Definition | |
| Anchorage, Alaska | Anchorage, Alaska/Approval | |
| Ancien Régime | Ancien Régime/Approval | Ancien Régime/Definition |
| Ancient Athens | Ancient Celtic music | Ancient Celtic music/Approval |
| Ancient Celtic music/Bibliography | Ancient Celtic music/Draft | Ancient Celtic music/External Links |
| Ancient Celtic music/Related Articles | Ancient Greece | Ancient Greece/Approval |
| Ancient Olympic Games | Ancient Olympic Games/Definition | |
| Ancient Rome | Ancient Rome/Approval | Ancient Rome/Bibliography |
| Ancient Rome/Catalogs | Ancient Rome/Catalogs/Roman Rulers | Ancient Rome/Definition |
| Ancient Rome/External Links | Ancient Rome/Related Articles | And Then We Moved to Rossenarra |
| And Then We Moved to Rossenarra/Definition | Andor Toth | Andor Toth/External Links |
| Andor Toth/External links | Andorra | Andorra/Approval |
| Andorra/Definition | ||
| Andreas Aagesen | Andreas Aagesen/Approval | Andreas Aagesen/Definition |
| Andreas Bertholan Schwarz | Andreas Bertholan Schwarz/Approval | |
| Andrew, Duke of York/Definition | Andrew Bell/Definition | Andrew Bonar Law |
| Andrew Bonar Law/Approval | Andrew Carnegie | Andrew Carnegie/Approval |
| Andrew Carnegie/Bibliography | Andrew Carnegie/Definition | Andrew Carnegie/Draft |
| Andrew Carnegie/External Links | Andrew Carnegie/Related Articles | Andrew Duncan |
| Andrew Duncan/Bibliography | Andrew Duncan/Definition | Andrew Duncan/Related Articles |
| Andrew Jackson | Andrew Jackson/Approval | Andrew Johnson |
| Andrew Johnson/Approval | Andrew Johnson/Definition | Andrew Keen |
| Andrew Keen/Definition | Andrew Keen/Related Articles | |
| Andrey Andreyevich Vlasov | Andrey Andreyevich Vlasov/Approval | Andrey Andreyevich Vlasov/Bibliography |
| Android | Android/Definition | |
| Andromeda (constellation) | Andromeda (constellation)/Definition | Andromeda (disambiguation) |
| Andromeda Galaxy | Andromeda Galaxy/Approval | Andromeda Galaxy/Definition |
| Androstenedione | Androstenedione/Approval | Androstenedione/Definition |
| André-Marie Ampère | André-Marie Ampère/Approval | |
| André-Marie Ampère/Definition | Andy Warhol | |
| Andy Warhol/Approval | Andy Warhol/Definition | Anemia |
| Anemia/Approval | Anemia/Definition | Anemia of chronic disease |
| Anemia of chronic disease/Approval | Angiography | |
| Angiotensin | ||
| Angiotensin-converting enzyme inhibitor | Angiotensin-converting enzyme inhibitor/Definition | |
| Angiotensin-converting enzyme inhibitor/Related Articles | Angiotensin/Approval | Angiotensin/Definition |
| Angiotensin/Related Articles | Angiotensin II receptor antagonist | |
| Angiotensin II receptor antagonist/Approval | Angiotensin II receptor antagonist/Definition | Angiotensin II receptor antagonist/Related Articles |
| Angiotensin receptor | Angiotensin receptor/Definition | |
| Angiotensin receptor/Related Articles | Angles Way | |
| Angles Way/Approval | ||
| Anglicanism | Anglicanism/Approval | Anglicanism/Bibliography |
| Anglicanism/Definition | Anglicanism/External Links | Anglicanism/Related Articles |
| Anglo-Irish Treaty | Anglo-Irish Treaty/Approval | Anglo-Irish Treaty/Definition |
| Anglo-Saxon (disambiguation) | Angola | Angola/Approval |
| Angola/Bibliography | Angola/Catalogs | Angola/Catalogs/Provinces |
| Angola/Definition | Angola/External Links | Angola/Gallery |
| Angola/Related Articles | ||
| Angular momentum (classical) | Angular momentum (classical)/Approval | |
| Angular momentum (disambiguation) | Angular momentum (quantum) | Angular momentum (quantum)/Approval |
| Angular momentum coupling | Angular momentum coupling/Approval | Animal |
| Animal/Approval | Animal/Definition | Animal fancy |
| Animal fancy/Approval | Animal fancy/Definition | Animalia |
| Animalia/Definition | Animalier | Animalier/Approval |
| Animalier/Bibliography | Animalier/Definition | Animalier/Related Articles |
| Anime | Anion | |
| Anion/Approval | Anion/Definition | |
| Ankylosing spondylitis | Ann Coulter | Ann Coulter/Approval |
| Ann Coulter/Definition | Ann Hamilton | Ann Hamilton/Approval |
| Ann Hamilton/Bibliography | Ann Hamilton/Definition | |
| Annales School | Annales School/Approval | |
| Annam | Annapolis Conference | |
| Annapolis Conference/Approval | Annapolis Conference/Definition | |
| Anne, Princess Royal/Definition | Anne Boleyn | Anne Boleyn/Definition |
| Anne of Austria | Anne of Austria/Approval | Anne of Austria/Definition |
| Annie Smith Peck | Annie Smith Peck/Approval | Anomia |
| Anomia/Definition | Anomia/Related Articles | Anonymity |
| Anonymity/Approval | Anonymity/Bibliography | Anonymity/Definition |
| Anshan | Anshan/Approval | Antarctica |
| Antarctica/Approval | Antarctica/Definition | Antarctica/External Links |
| Antares | Antares/Approval | Ante-Bellum South |
| Ante-Bellum South/Approval | Ante-Bellum South/Bibliography | Ante Pavelić |
| Anterior Cruciate Ligament | ||
| Anterior pituitary | Anterior pituitary/Approval | Anterior pituitary/Definition |
| Anthony Fokker | Anthony Fokker/Approval | Anthony Fokker/Bibliography |
| Anthony Fokker/External Links | Anthony Fokker/Related Articles | Anthrax |
| Anthropological linguistics | Anthropological linguistics/Approval | Anthropology |
| Anthropology/Approval | Anthropology/Bibliography | Anthropology/Catalogs |
| Anthropology/Catalogs/ | Anthropology/Catalogs/Anthropologists | |
| Anthropology/Definition | Anthropology/External Links | |
| Anti-Saloon League | Anti-Saloon League/Approval | |
| Anti-Saloon League/Bibliography | Anti-Saloon League/Definition | Anti-Saloon League/Draft |
| Anti-Saloon League/External Links | Anti-Saloon League/Related Articles | |
| Anti-air warfare | ||
| Anti-air warfare/Definition | Anti-aircraft artillery | Anti-aircraft artillery/Approval |
| Anti-aircraft artillery/Definition | Anti-ballistic missile | |
| Anti-intellectualism | Anti-intellectualism/Approval | |
| Anti-intellectualism/Bibliography | Anti-intellectualism/Definition | Anti-intellectualism/Related Articles |
| Anti-radiation missile | Anti-radiation missile/Approval | |
| Anti-radiation missile/Definition | Anti-radiation missile/Related Articles | |
| Anti-shipping missile | Anti-shipping missile/Definition | Anti-submarine warfare |
| Anti-submarine warfare/Definition | Anti-surface warfare | Anti-surface warfare/Definition |
| Anti-tank missile | Anti-tank missile/Definition | |
| Antibacterial | ||
| Antibacterial/Approval | Antibiotic | Antibiotic/Approval |
| Antibiotic/Definition | Antibiotic resistance | Antibiotic resistance/Definition |
| Anticoagulant | ||
| Anticoagulant/Approval | Anticoagulant/Definition | Anticoagulant/Related Articles |
| Anticoagulation/Approval | Antidepressant | |
| Antidepressant/Approval | Antidepressant/Definition | |
| Antidiuretic hormone/Approval | Antiemetic | Antigen |
| Antigen/Approval | Antigen/Definition | Antihero |
| Antihero/Definition | Antikythera | Antikythera/Video |
| Antimony/Atomic mass | Antimony/Atomic number | Antimony/Atomic symbol |
| Antimony/Boiling point | Antimony/Electron configuration | Antimony/Electronegativity |
| Antimony/Elemental Class | Antimony/Standard phase | Antineoplastons |
| Antineoplastons/Approval | Antineutrophil cytoplasmic antibody | |
| Antisocial personality disorder | Antisocial personality disorder/Approval | |
| Antisymmetrizer | Antisymmetrizer/Approval | Antitank weapon/Definition |
| Antitrust | Antitrust/Approval | |
| Antitrust/Bibliography | Antitrust/Definition | Antitrust/Documents |
| Antitrust/Related Articles | Antiviral/Approval | |
| Antiviral drug | Antiviral drug/Approval | Antiviral drug/Catalogs |
| Antiviral drug/Definition | Antlia | |
| Antlia/Approval | Antlia/Definition | Antoine-Henri Jomini |
| Anton Geesink | Anton Geesink/Definition | Anton Wilhelm Amo |
| Anton Wilhelm Amo/Approval | ||
| Antoni Gaudí | Antoni Gaudí/Approval | Antoni Gaudí/Definition |
| Antoni Gaudí/Gallery | Antoni Gaudí/Works | |
| Antonie van Leeuwenhoek | Antonie van Leeuwenhoek/Approval | Antonie van Leeuwenhoek/Definition |
| Antonie van Leeuwenhoek/External Links | ||
| Anxiety | Anxiety/Approval | Anxiety/Definition |
| Anycast | Anycast/Definition | |
| Aomori prefecture | Aomori prefecture/Approval | Aomori prefecture/Definition |
| Aortic regurgitation | Aortic regurgitation/Approval | Apache HTTP Server |
| Apache HTTP Server/Approval | Apache HTTP Server/External Links | |
| Apache Software Foundation | Apache Software Foundation/Approval | Ape |
| Ape/Approval | Ape/Definition | Ape/Related Articles |
| Apennine peninsula | Apennine peninsula/Approval | Aphasia/Definition |
| Aphid | Aphid/Approval | Aplastic anemia |
| Aplastic anemia/Approval | Apollo (disambiguation) | |
| Apollo Command-Service Module | Apollo Command-Service Module/Approval | |
| Apollodorus | Apollodorus/Approval | Apollodorus/Definition |
| Apologetics | Apologetics/Definition | Apoptosis |
| Apoptosis/Approval | Apoptosis/Definition | Aporia |
| Aporia/Approval | Aporia/Definition | Apostrophe |
| Apostrophe/Approval | Apostrophe/Definition | Apostrophe/Related Articles |
| Appendicitis | Appendicitis/Approval | Appendicitis/Definition |
| Appian way | Appian way/Approval | |
| Apple (disambiguation) | Apple (fruit) | |
| Apple (fruit)/Approval | Apple (fruit)/Bibliography | Apple (fruit)/Definition |
| Apple (fruit)/External Links | Apple (fruit)/Gallery | Apple (fruit)/Related Articles |
| Apple (tree) | Apple (tree)/Definition | |
| Apple Inc. | Apple Inc./Approval | Apple Inc./Definition |
| Apple Macintosh | Apple Macintosh/Approval | Apple Macintosh/Definition |
| Apple Macintosh/External Links | Application Service Provider | Application Service Provider/Definition |
| Applied cognitive science/Definition | Applied linguistics | |
| Applied linguistics/Approval | Applied linguistics/Bibliography | Applied linguistics/Definition |
| Applied linguistics/External Links | Applied social sciences | |
| Applied social sciences/Approval | Approximation theory | |
| Approximation theory/Approval | Approximation theory/Definition | Approximation theory/Related Articles |
| Apraxia/Definition | Apus | Apus/Approval |
| Aquarius | Aquarius/Approval | |
| Aquatics | Aquatics/Approval | |
| Aquatics/Definition | Aquatics/Related Articles | Aqueous Wastes from Petroleum and Petrochemical Plants |
| Aqueous Wastes from Petroleum and Petrochemical Plants/Approval | Aqueous Wastes from Petroleum and Petrochemical Plants/Bibliography | Aqueous Wastes from Petroleum and Petrochemical Plants/Definition |
| Aqueous Wastes from Petroleum and Petrochemical Plants/External Links | Aqueous Wastes from Petroleum and Petrochemical Plants/Related Articles | |
| Aquifer |