creatine
1. [ noun ] (biology,chemistry,biochemistry) 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
Synonyms: creatin
Related terms: compound amino_acid
Similar spelling:   creatin
  creation
  cretin
  Crayton
  Croatian
  craton
  creationism
  Creeden