| pterygospinous ligament | <anatomy> A membranous ligament extending from the spine of the sphenoid to the upper part of the posterior border of the lateral pterygoid lamina. Synonym: ligamentum pterygospinale, Civinini's ligament, pterygospinal ligament. (05 Mar 2000) |
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| pterygospinous process | A sharp projection from the posterior edge of the lateral pterygoid plate of the sphenoid bone. Synonym: processus pterygospinosus, Civinini's process. (05 Mar 2000) |