gabbro Meaning, Definition & Usage

  1. noun one of a family of granular intrusive rocks

WordNet


Gab"bro noun
Etymology
It.
Definitions
  1. (Geol.) 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).

Webster 1913