xanthopterin

X8A1N1T1H4O1P3T1E1R1I1N1

noun

A yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals, converted by microorganisms into folic acid.

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Meanings

nounxanthopterin (countable and uncountable, plural xanthopterins)

plural xanthopterins

  1. countableuncountableA yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals, converted by microorganisms into folic acid.

Origin

From xantho- + pterin.

Full word history & related roots →
Cite this entry
APA

xanthopterin. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/xanthopterin

MLA

“xanthopterin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/xanthopterin. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “xanthopterin,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/xanthopterin.

Source: xanthopterin on Wiktionary, CC BY-SA 4.0.