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phosphocreatine

American

[fos-foh-kree-uh-teen, -tin] / ˌfɒs foʊˈkri əˌtin, -tɪn /

noun

Biochemistry.

a compound, C 4 H 1 0 O 5 N 3 P, found chiefly in muscle, formed by the enzymatic interaction of an organic phosphate and creatine, the breakdown of which provides energy for muscle contraction.

phosphocreatine British

/ ˌfɒsfəˈkriːəˌtiːn /

noun

a compound of phosphoric acid and creatine found in vertebrate muscle

"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

Etymology

Origin of phosphocreatine

First recorded in 1925–30; phospho- + creatine

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Research shows that it increases creatine and phosphocreatine levels in muscle, which improves the body's ability to regenerate ATP during short bursts of high intensity activity.

From Science Daily • May 4, 2026

The compounds increased levels of phosphocreatine, a molecule that acts like an emergency energy supply.

From Science Daily • Mar. 6, 2026

“Comparative expression analysis of the phosphocreatine circuit in extant primates: Implications for human brain evolution.”

From Scientific American • Feb. 21, 2012

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023