Main Entry: tes·ti·cle

Pronunciation: \ˈtes-ti-kəl\

Function: noun

Etymology: Middle English testicule, from Latin testiculus, diminutive of testis

Date: 15th century

: testis; especially : one of a higher mammal usually with its enclosing structures

— tes·tic·u·lar \tes-ˈti-kyə-lər\ adjective