testis

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

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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

cestus, Festus, Sestos

TESTIS Defined for Kids

testis

noun tes·tis \ˈte-stəs\

plural tes·tes \ˈte-ˌstēz\

Definition of TESTIS for Kids

: a male reproductive gland that produces sperm

Medical Dictionary

testis

noun tes·tis \ˈtes-təs\

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