erythrine

from The Collaborative International Dictionary of English v.0.48

Erythrin \E*ryth"rin\, Erythrine \E*ryth"rine\, n. [Gr.
   'eryqro`s red.]
   1. (Chem.) A colorless crystalline substance, {C20H22O10},
      extracted from certain lichens, as the various species of
      {Rocella}. It is a derivative of orsellinic acid. So
      called because of certain red compounds derived from it.
      Called also {erythric} acid.
      [1913 Webster]

   2. (Min.) See {Erythrite}, 2.
      [1913 Webster]

from The Collaborative International Dictionary of English v.0.48


[1913 Webster]

   2. (Min.) A rose-red mineral, crystallized and earthy, a
      hydrous arseniate of cobalt, known also as {cobalt bloom};
      -- called also {erythrin} or {erythrine}.
      [1913 Webster]