anatomy either of two long bony plates extending downwards from each side of the sphenoid bone within the skull
Word Origin for pterygoid process
C18 pterygoid, from Greek pterugoeidēs, from pterux wing; see -oid
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A long process of the sphenoid bone extending downward from the junction of its body and great wing.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.