noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The condition caused by excessive secretion of hormones by pituitary tumors. uncountable
2. 2
   excessive activity of the pituitary gland (especially overactivity of the anterior lobe which leads to excess secretion of growth hormone) wordnet

Etymology

From hyper- + pituitary + -ism.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.