单词	pteridine
释义	pteridine noun pter·​i·​dine ˈter-ə-ˌdēn  : a yellow crystalline bicyclic base C6H4N4 broadly : any of a class of compounds (such as the pterins) that have the bicyclic ring system of pteridine and include especially various animal pigments Word History Etymology International Scientific Vocabulary pterin + -idine First Known Use 1943, in the meaning defined above Medical Definition pteridine noun pter·​i·​dine ˈter-ə-ˌdēn  : a yellow crystalline bicyclic base C6H4N4 that is a structural constituent especially of various animal pigments
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