\E*ryth"rite\, n. [Gr. 'eryqro`s red.]
1. (Chem.) A colorless crystalline substance, {C4H6.(OH)4},
   of a sweet, cooling taste, extracted from certain lichens,
   and obtained by the decomposition of erythrin; -- called
   also {erythrol}, {erythroglucin}, {erythromannite},
   {pseudorcin}, {cobalt bloom}, and under the name {phycite}
   obtained from the alga {Protococcus vulgaris}. It is a
   tetrabasic alcohol, corresponding to glycol and glycerin.
2. (Min.) A rose-red mineral, crystallized and earthy, a
   hydrous arseniate of cobalt, known also as {cobalt bloom};
   -- called also {erythrin} or {erythrine}.