Wiktionary
pars tuberalis
n. (context anatomy English) Part of the anterior lobe of the pituitary gland, which wraps the pituitary stalk in a highly vascularized sheath.
Wikipedia
Pars tuberalis
The pars tuberalis is part of the anterior lobe of the pituitary gland, and wraps the pituitary stalk in a highly vascularized sheath.