The Collaborative International Dictionary of English v.0.48:
Hypophysis \Hy*poph"y*sis\, n. [NL., fr. Gr. ? under + ? nature, origin.] 1. (Anat.) See Pituitary body, under Pituitary. [1913 Webster] 2. (Med.) Cataract. [1913 Webster]WordNet (r) 3.0 (2006):
hypophysis n 1: the master gland of the endocrine system; located at the base of the brain [syn: pituitary, pituitary gland, pituitary body, hypophysis]