Wiktionary
lipotropin
n. (context biochemistry English) A pituitary hormone that promotes the metabolism of fat, and is a precursor to the endorphins
Wikipedia
Lipotropin
Lipotropin is a hormone produced by the cleavage of pro-opiomelanocortin (POMC). The anterior pituitary gland produces the pro-hormone POMC, which is then cleaved again to form adrenocorticotropin (ACTH) and β-lipotropin (β-LPH).