† pterygopharyngeanadj. [perhaps after French ptérygo-pharyngien (1827 or earlier as ptérygo-pharingien), itself after scientific Latin pterigopharyngeus (see pterygopharyngealadj.)] Obsoleterare = pterygopharyngealadj.Apparently only attested in dictionaries or glossaries.
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1858 R. G. MayneExpos. Lexicon Med. Sci. (1860) 1039/2Pterygopharyngeus,..pterygopharyngean.