This shows grade level based on the word's complexity.
citrulline
[ si-truh-leen ]
/ ˈsɪ trəˌlin /
Save This Word!
This shows grade level based on the word's complexity.
noun Biochemistry.
an amino acid, NH2CONH(CH2)3CHNH2COOH, abundant in watermelons and an intermediate compound in the urea cycle.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.
Origin of citrulline
1930; <New Latin citrull(us) the watermelon genus (Medieval Latin citrul(l)us, citrolus, Latinization of South Italian citrulo, Tuscan citri(u)olo<Late Latin citrium watermelon (derivative of Latincitrus (see citrus); apparently in reference to the citroncolored fruit of some types of watermelon), with -uolo<Latin -eolus) + -ine2
Words nearby citrulline
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use citrulline in a sentence
Still others, like caffeine and citrulline malate, have more equivocal evidence.
British Dictionary definitions for citrulline
citrulline
/ (ˈsɪtrəˌliːn) /
noun
an amino acid that occurs in watermelons and is an intermediate in the formation of urea. Formula: NH 2 CONH(CH 2) 3 CHNH 2 COOH
Word Origin for citrulline
C20: from Medieval Latin citrullus a kind of watermelon, from Latin citron, referring to its colour
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
Scientific definitions for citrulline
citrulline
[ sĭt′rə-lēn′ ]
An amino acid originally isolated from watermelon, occurring mostly in the liver as an intermediate in the conversion of ornithine to arginine during urea formation. Chemical formula: C6H13N3O3.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.