testicle /ˈtɛstɪkəl/ noun plural testicles
plural testicles
Learner's definition of TESTICLE
[count]
: one of two small organs that are located in a sack of skin (called the scrotum) in men and male animals and that produce sperm and male hormones睾丸
— testicular
/tɛˈstɪkjəlɚ/ adjective, always used before a noun