Bony Prominences has several adjectives applied to them from their fancied resemblances, such as Azygos, without a fellow ; Clinoid, like a bed ; Coracoid, like a crow’s beak Coronoid, like a crown ; Hamular, hook-like; Malleolar, like a mallet; Mas-toid, like a nipple; Odontoid, tooth-like; Pterygoid, wing-like; Rostrum, a beak ; Spinous, thorn-like ; Styloid, pen-like ; Squamous, scaly ; Vaginal, en sheathing, etc.