creatine

[ kree-uh-teen, -tin ]

noun

, Biochemistry.

1. an amino acid, C 4 H 9 N 3 O 2 , that is a constituent of the muscles of vertebrates and is phosphorylated to store energy used for muscular contraction.

creatine

/ -tɪn; ˈkriːətɪn; ˈkriːəˌtiːn /

noun

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

creatine

/ krē′ə-tēn′,-tĭn /

1. 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: C 4 H 9 N 3 O 2 .

Word History and Origins

Origin of creatine¹

First recorded in 1830–40; creat- (from Greek kreat-, stem of kréas “flesh”) + -ine ²( def )

Word History and Origins

Origin of creatine¹

C19: creat- from Greek kreas flesh + -ine ²

Example Sentences

Creatine and creatinine also seem to lessen in amount, but of the extent of this change I am not as yet fully informed.

From Project Gutenberg

In vertebrates, the basis for the phosphoric acid is creatine, whereas invertebrates have arginine instead.

From Project Gutenberg