[ three-uh-neen, -nin ]
/ ˈθri əˌnin, -nɪn /
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an essential amino acid, CH3CHOHCH(NH2)COOH, obtained by the hydrolysis of proteins. Abbreviation: Thr; Symbol: T
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Words nearby threonine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for threonine
/ (ˈθriːəˌniːn, -nɪn) /
an essential amino acid that occurs in certain proteins
Word Origin for threonine
C20 threon-, probably from Greek eruthron, from eruthros red (see erythro-) + -ine ²
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
Medical definitions for threonine
[ thrē′ə-nēn′, -nĭn ]
A colorless crystalline amino acid that is derived from the hydrolysis of protein and is an essential component of human nutrition.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for threonine
[ thrē′ə-nēn′ ]
An essential amino acid. Chemical formula: C4H9NO3. See more at amino acid.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.