gabbro noun. ['gabrǝʊ] Pl. -os. M19.
[Italian (Tuscan) from Latin glaber, glabr- smooth.]
A dark coarse-grained igneous rock of crystalline texture resembling dolerite and granite, and consisting largely of pyroxene (often as diallage), plagioclase feldspar, and often olivine.

■ ga'bbroic,

■ gabbro'itic adjectives L19.

[TahlilGaran] English Dictionary ▲