creatine

[ kree-uh-teen, -tin ]

/ ˈkri əˌtin, -tɪn /

Save This Word!

noun Biochemistry.

an amino acid, C4H9N3O2, that is a constituent of the muscles of vertebrates and is phosphorylated to store energy used for muscular contraction.

COMPARE MEANINGS

Click for a side-by-side comparison of meanings. Use the word comparison feature to learn the differences between similar and commonly confused words.

QUIZ

QUIZ YOURSELF ON "IS" VS. "ARE"

"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."

Question 1 of 7

IS and ARE are both forms of which verb?

have

TAKE THE QUIZ TO FIND OUT

Origin of creatine

1830–40; creat- (<Greek kreat-, stem of kréas) flesh + -ine²

Words nearby creatine

creasy, create, create a scene, created, creatinase, creatine, creatine kinase, creatinemia, creatine phosphate, creatininase, creatinine

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use creatine in a sentence

At this point, protein and creatine are the only two that I really feel comfortable recommending.
There are only two supplements proven to help you build muscle|empire|July 9, 2021|Popular-Science
Muscles with stored creatine can rip a group from there and attach it to the ADP lying around—and voila, you have more ATP to use.
There are only two supplements proven to help you build muscle|empire|July 9, 2021|Popular-Science
Studies where two groups, one getting creatine and one a placebo, work out exactly the same amount—such that neither group is pushing themselves to the limit—show that the creatine doesn’t give you bigger muscles if you don’t put in extra work.
There are only two supplements proven to help you build muscle|empire|July 9, 2021|Popular-Science
There are some other suggestions in there, like creatine and beta-alanine.
How to Hold on to Your Sprint Speed as You Age|Alex Hutchinson|April 9, 2021|Outside Online

Creatine and creatinine also seem to lessen in amount, but of the extent of this change I am not as yet fully informed.
Fat and Blood|S. Weir Mitchell
In vertebrates, the basis for the phosphoric acid is creatine, whereas invertebrates have arginine instead.
Smithsonian Institution - United States National Museum - Bulletin 240|Anonymous

British Dictionary definitions for creatine

creatine

creatin (ˈkriːətɪn)

/ (ˈkriːəˌtiːn, -tɪn) /

noun

an important metabolite involved in many biochemical reactions and present in many types of living cells

Word Origin for creatine

C19: creat- from Greek kreas flesh + -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 creatine

creatine

[ krē′ə-tēn′, -tĭn ]

A nitrogenous organic acid that is found in the muscle tissue of vertebrates mainly in the form of phosphocreatine and supplies energy for muscle contraction.

Scientific definitions for creatine

creatine

[ krē′ə-tēn′, -tĭn ]

A nitrogenous organic acid that is found in the muscle tissue of vertebrates, mainly combined with phosphorus, and that supplies energy for muscle contraction. Chemical formula: C4H9N3O2.