somatotrophin so·ma·tot·rophin uncommon noun 1. a hormone produced by the anterior pituitary gland; promotes growth in humans Synonymssomatotropinsomatotropic hormonesomatotrophic hormoneSTHhuman growth hormonegrowth hormone Related words Broader terms hormone Narrower terms Protropin WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
