Category:Igneous

Ig"ne*ous, a. Etym: [L. igneus, fr. ignis fire; allied to Skr. agni, Lith. ugnis, OSlav. ogne.]

1. Pertaining to, having the nature of, fire; containing fire; resembling fire; as, an igneous appearance.

2. (Geol.)

Defn: Resulting from, or produced by, the action of fire; as, lavas and basalt are igneous rocks.