pterin

noun pter·in \ˈter-ən\

Definition of PTERIN

: any of various compounds that contain the bicyclic ring system characteristic of pteridine

International Scientific Vocabulary pter- (from Greek pteron wing) + ¹-in; from its being a factor in the pigments of butterfly wings

First Known Use: 1934

Medical Dictionary

noun pter·in \ˈter-ən\

: any of various compounds that contain the bicyclic ring system characteristic of pteridine

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