Definition of pterygoid ridge in US English:

pterygoid ridge


  • 1A ridge on a pterygoid bone, or formed by such a bone (in the skull of a fish, amphibian, or reptile).

  • 2The infratemporal crest of the lateral surface of the greater wing of the sphenoid bone, which gives origin to part of the lateral pterygoid muscle (in humans and various other mammals).


Late 19th century; earliest use found in Philosophical Transactions of the Royal Society of London.