Entry 1 sense Webster, 1913 Pterygopalatine · Pter·y·go·pal·a·tine · IPA /ˌtɛɹ.əɡ.oʊˈpæl.əˌtaɪn/ 01 a. Of or pertaining to the pterygoid processes and the palatine bones. 1. Of or pertaining to the pterygoid processes and the palatine bones.(Anat.)