IPA: /ˈtɛstɪs/
KK: /ˈtɛstɪs/
A male reproductive gland that produces sperm and hormones, usually found in pairs and located in the scrotum in many animals, including humans.
The doctor explained the function of the testis in male reproduction.
Testis → It comes from Latin 'testis' (meaning witness). The word originally referred to someone who bears witness or gives testimony, particularly in a legal context.
Think of a 'witness' ('testis') who provides evidence or testimony in a situation — that's why 'testis' relates to the act of witnessing.