noun tes·tis \ˈtes-təs\
plural tes·tes \ˈtes-ˌtēz\

Definition of TESTIS

:  a typically paired male reproductive gland that produces sperm and secretes testosterone and that in most mammals is contained within the scrotum at sexual maturity

Origin of TESTIS

Latin, witness, testis
First Known Use: 1650

Other Anatomy Terms

bilateral symmetry, carotid, cartilage, dorsal, entrails, prehensile, renal, solar plexus, supine, thoracic, ventral

Rhymes with TESTIS


noun tes·tis \ˈtes-təs\   (Medical Dictionary)
plural tes·tes \ˈtes-ˌtēz\

Medical Definition of TESTIS

:  a typically paired male reproductive gland that usually consists largely of seminiferous tubules from the epithelium of which spermatozoa develop, that contains androgen-secreting Leydig cells in the interstitial tissue, that corresponds to the ovary of the female and in craniate vertebrates develops from the genital ridges of the embryo, and that in most mammals descends into the scrotum before the attainment of sexual maturity and in many cases before birth

Illustration of TESTIS


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