| gabbro | <geology> A name originally given by the Italians to a kind of serpentine, later to the rock called euphotide, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and labradorite, with sometimes chrysolite (olivine gabbro). Origin: It. Source: Websters Dictionary (01 Mar 1998) |
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