Chemistry Abbreviations Starting with the Letter A

Abbreviations and Acronyms Used in Chemistry

A common chemistry abbreviation for atom is A.
A common chemistry abbreviation for atom is A. Paper Boat Creative/Getty Images
by Anne Marie Helmenstine, Ph.D.
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.
Updated March 08, 2017

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.

A - Atom
AA - Acetic Acid
AA - Amino Acid
AA - Atomic Absorption spectroscopy
AACC - American Association for Clinical Chemistry
AADC - Amino Acid DeCarboxylase
AADC - Aromatic L-Amino acid DeCarboxylase
AAS - Atomic Absorption Spectroscopy
AB - Acid Base
AB - Acid Bath
ABC - Atomic, Biological, Chemical
ABCC - Advanced Biomedical Computing Center
ABCC - American Board of Clinical Chemistry
ABS - Acrylonitrile Butadiene Styrene
ABS - Absorb
ABV - Alcohol By Volume
ABW - Alcohol By Weight
Ac - Actinium
AC - Aromatic Carbon
ACC - American Chemical Council
ACE - Acetate
ACS - American Chemical Society
ADP - Adenosine DiPhosphate
AE - Activation Energy
AE - Atomic Emission
AE - Acid Equivalent
AFS - Atomic Fluorescence Spectroscopy
Ag - Silver
AH - Aryl Hydrocarbon
AHA - Alpha Hydroxy Acid
Al - Aluminum
ALDH - ALdehyde DeHydrogenase
Am - Americium
AM - Atomic Mass
AMP - Adenosine MonoPhosphate
AMU - Atomic Mass Unit
AN - Ammonium Nitrate
ANSI - American National Standards Institute
AO - Aqueous Oxygen
AO - Aldehyde Oxidase
API - Aromatic PolyImide
AR - Analytical Reagent
Ar - Argon
As - Arsenic
AS - Ammonium Sulfate
ASA - AcetylSalicylic Acid
ASP - ASParate
AT - Adenine and Thymine
AT - Alkaline Transition
At - Astatine
AT NO - Atomic Number
ATP - Adenosine TriPhosphate
ATP - Ambient Temperature Pressure
Au - Gold
AW - Atomic Weight