aspartic acid


noun Biochemistry.

a nonessential amino acid, C4H7NO4, produced by the hydrolysis of asparagine and proteins, found chiefly in young sugar cane and sugar-beet molasses, and used in the preparation of culture media and as a dietary supplement. Abbreviation: Asp; Symbol: D

Nearby words

  1. asparagus fern,
  2. aspartame,
  3. aspartase,
  4. aspartate,
  5. aspartate aminotransferase,
  6. aspasia,
  7. aspect,
  8. aspect ratio,
  9. aspectant,
  10. aspectual

Origin of aspartic acid

First recorded in 1830–40; aspar(agus) + -tic

Also called aminosuccinic acid. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for aspartic acid

aspartic acid


a nonessential amino acid that is a component of proteins and acts as a neurotransmitter

Word Origin for aspartic acid

C19: from aspar (agus) + -ic

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for aspartic acid

aspartic acid



One of the nonessential amino acids that occur in proteins.alpha-aminosuccinic acid

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for aspartic acid

aspartic acid


A nonessential amino acid. Chemical formula: C4H7NO4. See more at amino acid.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.