proline

noun
pro·​line | \ ˈprō-ˌlēn \

Definition of proline

: an amino acid C5H9NO2 that can be synthesized by animals from glutamate

Examples of proline in a Sentence

Recent Examples on the Web

Collagen Peptides There are two amino acids in the protein collagen — proline and glycine — that are essential for the formation and repair of joints, bones, muscles, and tendons, Dr. Bowe says. Amy Capetta, Woman's Day, "5 Anti-Aging Supplements That May Actually Work," 16 Oct. 2018 The collagen found in our bodies is made up of several amino acids, including glycine, proline, hydroxyproline, and arginine. Elise Deming, Rdn, Ldn, Philly.com, "What is collagen and why are people eating it?," 26 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'proline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of proline

1904, in the meaning defined above

History and Etymology for proline

German Prolin, contraction of Pyrrolidin pyrrolidine (C4H9N), from International Scientific Vocabulary pyrrole + -idine

Keep scrolling for more

Learn More about proline

Statistics for proline

Look-up Popularity

Time Traveler for proline

The first known use of proline was in 1904

See more words from the same year

Keep scrolling for more

More Definitions for proline

proline

noun
pro·​line | \ ˈprō-ˌlēn \

Medical Definition of proline

: an amino acid C5H9NO2 that can be synthesized by animals from glutamate abbreviation Pro

More from Merriam-Webster on proline

Britannica.com: Encyclopedia article about proline

Comments on proline

What made you want to look up proline? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a servile follower or underling

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!