pterygo-

• pteryg- (before a vowel)

From Ancient Greek πτέρῠγος (ptérŭgos), genitive singular of πτέρῠξ (ptérŭx, “wing”).

• (Received Pronunciation) IPA^(key): /tɛ.ɹɪɡ.ə(ʊ)/
• (General American) IPA^(key): /tɛɹ.əɡ.oʊ/

pterygo-

1. (zootomy) Of or relating to the wing or fin.

   pterygoblast, pterygobranchiate

2. (anatomy) Wing-shaped; pterygoid.

   pterygomalar

• “pterygo-”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.