tes·tos·ter·one 
/tɛˈstɑ:stəˌroʊn/ noun
/tɛˈstɑ:stəˌroʊn/ noun [noncount] 1 medical : a substance (called a hormone) that occurs naturally in men and male animals ◊Testosterone causes the development of the male reproductive system and characteristics of the adult male body. 2 informal + often disapproving : qualities (such as noticeable strength and aggressiveness) that agree with traditional ideas about what men are like
▪ a testosterone-fueled television show
▪ a testosterone-fueled television show
