Dictionary

amino acid

noun

biology : any one of many acids that occur naturally in living things and that include some which form proteins

Full Definition of AMINO ACID

:  an amphoteric organic acid containing the amino group NH2; especially :  any of the various amino acids having the amino group in the alpha position that are the chief components of proteins and are synthesized by living cells or are obtained as essential components of the diet

First Known Use of AMINO ACID

1898
AMINO ACID Defined for Kids

amino acid

noun ami·no acid \ə-ˈmē-nō-\

Definition of AMINO ACID for Kids

:  any of various acids containing carbon and nitrogen that are building blocks of protein and are made by living plant or animal cells or are obtained from the diet
Medical Dictionary

amino acid

noun

Medical Definition of AMINO ACID

:  an amphoteric organic acid containing the amino group NH2; especially :  alpha-amino acid

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