'Creatin' definitions:
Definition of 'creatin'
(from WordNet)
noun
An amino acid that does not occur in proteins but is found in the muscle tissue of vertebrates both in the free form and as phosphocreatine; supplies energy for muscle contraction [syn: creatine, creatin]
Definition of 'Creatin'
From: GCIDE
- Creatin \Cre"a*tin\ (kr?"?-t?n), n. [Gr. ??? flesh.] (Physiol. Chem.) A white, crystalline, nitrogenous substance found abundantly in muscle tissue. [Written also kreatine.] [1913 Webster]