pteridine

noun
pter·i·dine | \ˈter-ə-ˌdēn \

Definition of pteridine 

: 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

First Known Use of pteridine

1943, in the meaning defined above

History and Etymology for pteridine

International Scientific Vocabulary pterin + -idine

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The first known use of pteridine was in 1943

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pteridine

noun
pter·i·dine | \ˈter-ə-ˌdēn \

Medical Definition of pteridine 

: a yellow crystalline bicyclic base C6H4N4 that is a structural constituent especially of various animal pigments

More from Merriam-Webster on pteridine

Britannica.com: Encyclopedia article about pteridine

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