pteridine

American

[ter-i-deen] / ˈtɛr ɪˌdin /

noun

Chemistry. a bicyclic heteroaromatic organic compound with the formula C₆H₄N₄, having two nitrogen atoms at the first and fourth positions in ring A, and the first and third positions in ring B.

pteridine Scientific

/ tĕr′ĭ-dēn′ /

Any of a group of organic compounds having two fused six-member rings each containing two nitrogen atoms and four carbon atoms. One of the rings is a pyrimidine, the other a pyrazine. Pteridines include folic acid and the pigments of butterfly wings.

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023