Science, Tech, Math › Science Chemistry Abbreviations Starting with the Letter A Share Flipboard Email Print Paper Boat Creative/Getty Images Science Chemistry Abbreviations & Acronyms Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated August 16, 2019 Chemistry abbreviations and acronyms are common in all fields of science. This collection offers common abbreviations and acronyms beginning with the letter A used in chemistry and chemical engineering. Chemistry Abbreviations: A A: AtomAA: Acetic AcidAA: Amino AcidAA: Atomic Absorption spectroscopyAACC: American Association for Clinical ChemistryAADC: Amino Acid DeCarboxylaseAADC: Aromatic L-Amino acid DeCarboxylaseAAS: Atomic Absorption SpectroscopyAB: Acid-BaseAB: Acid BathABC: Atomic, Biological, ChemicalABCC: Advanced Biomedical Computing CenterABCC: American Board of Clinical ChemistryABS: Acrylonitrile Butadiene StyreneABS: AbsorbABV: Alcohol By VolumeABW: Alcohol By WeightAc: ActiniumAC: Aromatic CarbonACC: American Chemical CouncilACE: AcetateACS: American Chemical SocietyADP: Adenosine DiPhosphateAE: Activation EnergyAE: Atomic EmissionAE: Acid EquivalentAFS: Atomic Fluorescence SpectroscopyAg: SilverAH: Aryl HydrocarbonAHA: Alpha Hydroxy AcidAl: AluminumALDH: ALdehyde DeHydrogenaseAm: AmericiumAM: Atomic MassAMP: Adenosine MonoPhosphateAMU: Atomic Mass UnitAN: Ammonium NitrateANSI: American National Standards InstituteAO: Aqueous OxygenAO: Aldehyde OxidaseAPI: Aromatic PolyImideAR: Analytical ReagentAr: ArgonAs: ArsenicAS: Ammonium SulfateASA: AcetylSalicylic AcidASP: ASParateAT: Adenine and ThymineAT: Alkaline TransitionAt: AstatineAT NO: Atomic NumberATP: Adenosine TriPhosphateATP: Ambient Temperature PressureAu: GoldAW: Atomic Weight Cite this Article Format mla apa chicago Your Citation Helmenstine, Anne Marie, Ph.D. "Chemistry Abbreviations Starting with the Letter A." ThoughtCo, Aug. 25, 2020, thoughtco.com/chemistry-abbreviations-starting-with-the-letter-a-603451. Helmenstine, Anne Marie, Ph.D. (2020, August 25). Chemistry Abbreviations Starting with the Letter A. Retrieved from https://www.thoughtco.com/chemistry-abbreviations-starting-with-the-letter-a-603451 Helmenstine, Anne Marie, Ph.D. "Chemistry Abbreviations Starting with the Letter A." ThoughtCo. https://www.thoughtco.com/chemistry-abbreviations-starting-with-the-letter-a-603451 (accessed March 7, 2021). copy citation