Definition of testicle in English:

testicle

noun

  • Either of the two oval organs that produce sperm in men and other male mammals, enclosed in the scrotum behind the penis.

    Also called testis

Origin

Late Middle English: from Latin testiculus, diminutive of testis ‘a witness’ (i.e. to virility).

Pronunciation

testicle

/ˈtɛstɪk(ə)l/