xanthoproteic reaction
noun
xan·tho·proteic reaction
variants:
or xanthoproteic test \ ¦zan(t)thə+...- \
Definition of xanthoproteic reaction
: the reaction of warm concentrated nitric acid with tyrosine or tyrosine-containing proteins (as in human skin) to form a yellow color that is intensified to orange-yellow by the addition of alkali
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