The Collaborative International Dictionary of English v.0.48:
Hypophysial \Hy`po*phys"i*al\, a. (Anat.) Of or pertaining to the hypophysis; pituitary. [1913 Webster]WordNet (r) 3.0 (2006):
hypophysial adj 1: of or relating to the hypophysis [syn: hypophyseal, hypophysial]