Dictionary.com

proline

[ proh-leen, -lin ]
/ ˈproʊ lin, -lɪn /
Save This Word!

noun Biochemistry.
an alcohol-soluble amino acid, C4H9NHCOOH, occurring in high concentration in collagen. Abbreviation: Pro; Symbol: P
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 proline

First recorded in 1900–05; alteration of pyrrolidine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use proline in a sentence

British Dictionary definitions for proline

proline
/ (ˈprəʊliːn, -lɪn) /

noun
a nonessential amino acid that occurs in protein

Word Origin for proline

C20: from pyrrolidine
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 proline

proline
[ prōlēn′ ]

A nonessential amino acid. Chemical formula: C5H9NO2. See more at amino acid.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK