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aspartic acid Syllabification: as·par·tic ac·id
Pronunciation: /əˌspärtik ˈasid/

Definition of aspartic acid in English:


An acidic amino acid that is a constituent of most proteins and also occurs in sugar cane. It is important in the metabolism of nitrogen in animals and also acts as a neurotransmitter.
  • Chemical formula: COOHCH2CH(NH2)COOH
Example sentences
  • Infusion of the amino acids lysine and arginine, but not aspartic acid or glutamic acid, have been shown to stimulate the release of insulin in horses.
  • Carefully read food labels to see where you might be unknowingly ingesting aspartame; manufacturers sometimes list it as its components, the amino acids aspartic acid and phenylalanine.
  • Aspartame is an odorless, white crystalline powder derived from two amino acids, aspartic acid and phenylalanine.


Example sentences
  • Dr. Hans Neiper popularized the use of magnesium aspartate.
  • The second mutation was in a change in histidine at position 63 to aspartate.
  • The news of aspartate binding outside the cell travels via the same protein relay but has the opposite effect.


Mid 19th century: aspartic from French aspartique, formed arbitrarily from Latin asparagus (see asparagus).

Definition of aspartic acid in:
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