n. [ From L. Ilva, the island now called Elba. ] (Min.) A silicate of iron and lime occurring in black prismatic crystals and columnar masses. [ 1913 Webster ]
n.;
a. [ L. silva, less correctly sylva, a wood or grove, perh. akin to Gr.
Betwixt two rows of rocks, a silvan scene
Appears above, and groves forever green. Dryden. [1913 Webster]
n. (Old Chem.) See Sylvanium. [ Obs. ] [ 1913 Webster ]
n. (Min.) See Sylvanite. [ 1913 Webster ]
n. (Chem.) Same as Sylvate. [ 1913 Webster ]