phloxine
noun
phlox·ine
| \ ˈfläk-ˌsēn
, -sən
\
, -sən
\
Medical Definition of phloxine
: either of two acid dyes or their sodium salts that are derivatives of eosin and are used chiefly as biological stains and organic pigments:
a
: one containing two atoms of chlorine in each molecule
— called also phloxine B
b
: one containing four atoms of chlorine in each molecule