Igneous
Pronunciation : Ig"ne*ous
Part of Speech : a.
Etymology : [L. igneus, fr. ignis fire; allied to Skr. agni, Lith. ugnis, OSlav. ogne.]
Definition : 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.
Source : Webster's Unabridged Dictionary, 1913