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pyoxanthin
pyoxanthin n.
Brit. 
/ˌpʌɪə(ʊ)ˈzanθ(ᵻ)n/
, /ˌpʌɪə(ʊ)ˈzanθ(ᵻ)n/U.S. /ˌpaɪoʊˈzænθ(ə)n/
[after French pyoxanthine (M. J. Fordos, 1863 or earlier)] Biochemistry rare (now disused) = pyoxanthose n./ˌpaɪoʊˈzænθ(ə)n/ΚΠ
1873 C. H. Ralfe Outl. Physiol. Chem. 40 Minute yellow crystals of pyoxanthin.
1906 D. H. Udall tr. E. Fröhner Gen. Surg. 26 Through the decomposition of albumen they produce a blue and yellowish-green coloring material (pyocyanin, pyoxanthin) similar to the bacilli of blue milk.
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