Cotyloid
Pronunciation : Cot"y*loid (kt"-loid)
Part of Speech : a.
Etymology : [Cotyle + -oid] (Anat.) (a) Shaped like a cup; as, the cotyloid cavity, which receives the head of the thigh bone. (b) Pertaining to a cotyloid cavity; as, the cotyloid ligament, or notch.
Source : Webster's Unabridged Dictionary, 1913