cremasterPronunciation: /krɪˈmastə/Definition of cremaster noun 1 (also cremaster muscle) Anatomy the muscle of the spermatic cord, by which the testicle can be partially raised. 2 Entomology the hook-like tip of a butterfly pupa, serving as an anchorage point. Origin: late 17th century: from Greek kremastēr, from krema- 'hang'cremaster in other Oxford dictionaries Definition of cremaster in the US English dictionary
