noun🔗ShareA testicle of a vertebrate."The doctor examined the patient's testis to check for any abnormalities. "anatomyorganbodymedicinephysiologysexanimalChat with AIVocabulary GamePractice Reading
noun🔗ShareAn analogous gland in invertebrates such as the hydra."In biological studies of hydra reproduction, researchers examine the testis for signs of sperm production. "organbiologyanimalChat with AIVocabulary GamePractice Reading