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What does AA stand for?

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Rank Abbr.Meaning
AAAna (Greek: the same amount each)
AAAmino Acid
AAAtomic Absorption
AAAddicts Anonymous
AAAcrylic Acid
AAAcetic Acid
AAArachidonic Acid
AAAviation Archive (publication)
AAAnalysis and Applications (mathematics)
AAAbdominal Aorta
AAAcetic Anhydride
AAAnxiety Attack
AAArithmetic Average
AAActivation Analysis
AAAnalysis of Alternatives
AAArnold Arboretum (Harvard University)
AAAcute Abdomen
AAAdministrative Associate
AAAromatic Amine (chemical for industrial crop production)
AAActive Application
AAAttainment Area (EPA)
AAAtlanto-Axial (joint)
AAArithmetical Average
AAAcupuncture Analgesia
AAAspect Angle (aviation)
AAApplied Aerodynamics (course)
AAAblative Absolute
AAAmount Administered
AAAnatomical Adaptation
AAAchieved Availability
AAApproximate Absolute (temperature scale)
AAAmplitude of Accommodation (ophthalmology)
AAApproved Apparatus
AAAnesthesiologist's Assistant
AAAccountable Area
AAAtrophia Areata
AAAngle Angle Similarity Postulate (geometry)
AAAxillary Arch (area near the shoulder)
AAAnnulus Air
AAArmature Accelerator
AAAiming Algorithm
AAAttenuation Adaptivity
AAAnal Aneurysm
AAAlternate/Alternative Analysis
AAAbsorption Développement Atomique (French: atomic absorption)
AAAgglutination Anticyclonique
AANo sickle-cell Anemia (allele rendering; no sickling gene)
AAArmy Ants
AAAplastic Anemia
AAAir Ambulance
AAAlcohol Abuse
AAAldosterone Antagonist
AAAlopecia Areata
AAAllergic Asthma
AAAmerican Anthropologist (organization/newsletter)
AAAmerican Anthropology (scientific group)
AAAmbulance Assistant (emergency services)
AAAffected Area
AAAdvanced Airway
AAAdvanced Alloy

showing only Science & Medicine definitions (show all 299 definitions)

Note: We have 149 other definitions for AA in our Acronym Attic

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