Entry 1 sense Webster, 1913 Suprasphenoidal · Su·pra·sphe·noid·al · IPA 01 a. Situated above the sphenoidal bone; as, the suprasphenoidal appendage, or pituitary body. 1. Situated above the sphenoidal bone; as, the suprasphenoidal appendage, or pituitary body.(Anat.)