noun🔗Share睾丸A testicle of a vertebrate."The doctor examined the patient's testis to check for any abnormalities. "医師は異常がないか確認するために、患者の睾丸を検査しました。anatomyorganbodymedicinephysiologysexanimalChat with AIVocabulary GamePractice Reading
noun🔗Share精巣An analogous gland in invertebrates such as the hydra."In biological studies of hydra reproduction, researchers examine the testis for signs of sperm production. "ヒドラの生殖に関する生物学的研究では、研究者は精子産生の兆候がないか精巣を調べます。organbiologyanimalChat with AIVocabulary GamePractice Reading
