[ noun ] one of the two male reproductive glands that produce spermatozoa and secrete androgens <noun.body> she kicked him in the balls and got away
Testis \Tes"tis\, n.; pl. {Testes}. [L.] (Anat.) A testicle.
The Vietnam dogs also had 90 percent more seminomas, a malignant tumor of the testis.
Nobody knows the cause of testicular cancer, but risk factors are coming to light. Until recently, an undescended or partly descended testis was one of the few known causal factors.