tryptophan definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a white, aromatic, crystalline, essential amino acid, CHNHCHCCHCH(NH)COOH, produced synthetically and in digestion by the action of trypsin on proteins
Origin: ; from trypt(ic) plush -o- plush -phan(e)
tryptophan definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
An essential amino acid, C11H12N2O2, formed from proteins during digestion by the action of proteolytic enzymes. It is necessary for normal growth and development and is the precursor of several substances, including serotonin and niacin.
Origin: tryptic, of trypsin (formed on the model of pepsin, peptic); see trypsin + -phan(e).
tryptophan - Medical Definition
The American Heritage® Medical Dictionary Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
or tryp·to·phanenoun Abbr. Try
An essential amino acid formed from proteins during the digestive process by the action of proteolytic enzymes.
tryptophan - Science Definition
An essential amino acid. Chemical formula: C11H12N2O2. See more at amino acid.