creatine
/ˈkriːətɪn/noun
mass noun
1- Biochemistry a compound formed in protein metabolism and present in much living tissue. It is involved in the supply of energy for muscular contraction.【生化】肌酸。
1.1
- A guanidine derivative, usually present as a phosphate; chem. formula: C4H9N3O2.胍的衍生物, 通常以磷酸盐（或酯）形式出现; 化学分子式：C4H9N3O2.
词源
mid 19th cent.:formed irregularly from Greek kreas 'meat' + -INE4.