Definition of testicle in English:

testicle

Syllabification: tes·ti·cle
Pronunciation: /ˈtestək(ə)l
 
/

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.
Synonyms
testes, gonads
informal prairie oysters, mountain oysters, cojones, family jewels
vulgar slang balls, nuts, nads
British bollocks

Origin

late Middle English: from Latin testiculus, diminutive of testis 'a witness' (i.e., to virility).

Derivatives

testicular

Pronunciation: /teˈstikyələr/
adjective

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