D defs.my
Entry 1 sense Webster, 1913

Helvine

· Hel·vine · IPA
01 n. A mineral of a yellowish color, consisting chiefly of silica, glucina, manganese, and iron, with a little sulphur.
  1. 1.
    A mineral of a yellowish color, consisting chiefly of silica, glucina, manganese, and iron, with a little sulphur.(Min.)