English

Definition of testosterone noun from the Oxford Advanced Learner's Dictionary

 

testosterone

 noun
noun
BrE BrE//teˈstɒstərəʊn//
 
; NAmE NAmE//teˈstɑːstəroʊn//
 
 
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a hormone (= chemical substance produced in the body) that causes men to develop the physical and sexual features that are characteristic of the male body compare oestrogen, progesterone Word Origin 1930s: from testis + sterone (blend of sterol and ketone).
See the Oxford Advanced American Dictionary entry: testosterone