1. Of, relating to, or located in the region of the sphenoid bone: a pterygoid muscle.
2. Resembling a wing; winglike.
Either of two processes descending from the body of the sphenoid bone.
[Greek pterugoeidēs, winglike : pterux, pterug-, wing; see pet- in the Appendix of Indo-European roots + -oeidēs, -oid.]
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