促生长素 cùshēngzhǎngsù somatotropin Origin Definitions Defs Strokes Stroke Words Sentences Sents 促 cù verb to urge to urge; to promote; to press for something to happen quickly生长素 生長素 shēngzhǎngsù growth hormone A hormone secreted by the pituitary gland that stimulates growth in humans and other animals; somatotropin