Ma'anar ƙamus na kalmar "hormone na somatotropic" yana nufin wani nau'in hormone wanda glandan pituitary ke samarwa a cikin kwakwalwa. Sumatotropic hormones kuma ana kiran su da hormones girma, kuma suna ƙarfafa girma da ci gaba a cikin jiki. Wadannan hormones suna inganta haɓakar ƙasusuwa, tsokoki, da sauran kyallen takarda, da kuma daidaita matakan metabolism da makamashi. Ana sarrafa sigar hormone na somatotropic ta hanyoyi daban-daban kamar motsa jiki, damuwa, barci, da abinci mai gina jiki.