ˈkrēəˌtēn, -_tə̇n noun
( -s )
Etymology: International Scientific Vocabulary creat- + -ine; originally formed as French créatine
: a white crystalline compound NH 2 C( . NH)N(CH 3 )CH 2 COOH found especially in the muscles of vertebrates both as phosphocreatine and as the free form and also in the blood and obtained from meat extracts; 1-methyl-guanidine-acetic acid