英文釋義
any of various natural steroids (such as estradiol) that are formed from androgen precursors, that are secreted chiefly by the ovaries, placenta, adipose tissue, and testes, and that stimulate the development of female secondary sex characteristics and promote the growth and maintenance of the female reproductive system; also : any of various synthetic or semisynthetic steroids (such as ethinyl estradiol) that mimic the physiological effect of natural estrogens
例句 Example
All the sex hoymones, e . g. estrogens, progesterone, and testosterone, are steroids.
所有的性激素, 例如雌激素 、 黃體酮和睾酮都是類固酮.