From Longman Dictionary of Contemporary Englishtestestes‧tes /ˈtestiːz/ noun the plural of testis
Examples from the Corpus
testes• This species has small testes for its body size, even though the literature records that females associate with several males.• One of the major functions of the testes is to produce testosterone, the most potent androgen.• A high intake causes rats to develop cancer, with damage to the testes and infections.• The testes also are engorged and swell. 