somatotropin
noun
so·mato·tro·pin sō-ˌma-tə-ˈtrō-pən 
variants or less commonly somatotrophin
sō-ˌma-tə-ˈtrō-fən
: growth hormone sense 1
Word History
Etymology
somatotropic + -in entry 1
First Known Use
1941, in the meaning defined above
Medical Definition
somatotropin
noun
so·ma·to·tro·pin -ˈtrō-pən
variants also somatotrophin
-fən
: growth hormone