What is another word for testis?
Pronunciation: [tˈɛstiz] (IPA) 
Testis is a term used to describe the male reproductive gland that is responsible for producing sperm and testosterone. There are several synonyms that are used to describe the testis, including testicle, gonad, and testicular gland. The term "testicular gland" specifically refers to the glandular tissue within the testis that produces testosterone, while "gonad" is a more general term used to describe both male and female reproductive glands. Other synonyms that are sometimes used include stones, balls, and nuts, although slang terms should be avoided in professional settings. It is important to note that while these terms are interchangeable, "testis" tends to be the most commonly used medical term.
