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Medical Term:


Pronunciation: tes'tis, -tez


One of the two oval male gonads (reproductive glands), located in the cavity of the scrotum. The seminiferous tubules of the testis are the site of spermatogenesis and its Leydig cells secrete testosterone as well as estrogens and other androgenic steroid hormones.

Synonym(s): didymus, genital gland1, male gonad, orchis, testicle, testiculus


See Also: appendix testis

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.