Pterygoid

Chamber's Twientieth Century Dictionary · 1908 · p. 82

ter′i-goid, n. one of a pair of bones in the facial apparatus of some vertebrata behind the palatines, known in human anatomy as the pterygoid plates of the sphenoid bone.— adj. aliform or alate.— adj. Pteryg′ian .— n. Pteryg′ium , a generalised limb of a vertebrate.