any of a group of usually dark, coarsegrained, igneous rocks, composed chiefly of pyroxene and plagioclase
Origin of gabbroItalian from Classical Latin glaber, bare: see glabrous
A usually coarse-grained igneous rock composed chiefly of pyroxene and calcic plagioclase feldspar. Also called norite .
Origin of gabbroItalian perhaps from Latin glaber bald, beardless
- gab·bro′ic gab′broid′
From Italian gabbro.