Word Study
gabbro
CIDE DICTIONARY
gabbro, n. [It.].
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). [1913 Webster]
OXFORD DICTIONARY
gabbro, n. (pl. -os) a dark granular plutonic rock of crystalline texture.
Derivative
gabbroic adj. gabbroid adv.
Etymology
It. f. Gabbro in Tuscany
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