a. [f. prec. + -IC.] Of, consisting of, of the nature of, or resembling basalt.
1772. Pennant, Tours Scot. (1774), 161. Basaltic, a term I apply to the jointed columns, resembling those of the giants causeway.
1813. Sir H. Davy, Agric. Chem. (1814), 201. Fine red Earth immediately above decomposing basalt may be denominated basaltic soil.
1843. J. Portlock, Geol., 149. Eruptions of basaltic lava.