[{"Bold_text": "noun", "List Items": ["Biochemistry.the sex hormone C19H28O2, secreted by the testes, that stimulates the development of male sexual organs, secondary sexual traits, and sperm.", "Pharmacology.a commercially prepared form of the sex hormone C19H28O2, originally isolated from bull's testes and now also produced synthetically, used in medicine chiefly for treatment of testosterone deficiency and for certain gynecological conditions."]}]