alloxazine
noun
al·lox·azine
| \ ə-ˈläk-sə-ˌzēn
\
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Medical Definition of alloxazine
: either of two acidic compounds C10H6N4O2 containing a pyrimidine ring:
a
: a grayish green powder obtained by reaction of alloxan with the ortho form of phenylenediamine
b
: isoalloxazine