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gabbro
[ gab-roh ]
noun
- a dark granular igneous rock composed essentially of labradorite and augite.
gabbro
/ ˈɡæbrəʊ /
noun
- a dark coarse-grained basic plutonic igneous rock consisting of plagioclase feldspar, pyroxene, and often olivine
gabbro
/ găb′rō /
- A usually dark, coarse-grained igneous rock composed mostly of plagioclase feldspar and clinopyroxene, and sometimes olivine. Gabbro is the coarse-grained equivalent of basalt.
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Derived Forms
- gabˈbroic, adjective
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Other Words From
- gab·bro·ic [g, uh, -, broh, -ik], gabbro·itic adjective
- gab·broid [gab, -roid], adjective
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Word History and Origins
Origin of gabbro1
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Word History and Origins
Origin of gabbro1
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Compare Meanings
How does gabbro compare to similar and commonly confused words? Explore the most common comparisons:
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Example Sentences
Peridotite and gabbro form much of the eastern peninsula (Banggai).
Gabbro, a typical basic rock, corresponds to basalt in chemical composition.
The gneisses appear to be due in many cases to the crushing and shearing of deep-seated igneous rocks, such as granite and gabbro.
The one exception is on Caribou Ridge, which is capped by a much altered gabbro.
These volcanic materials are pierced by serpentine, gabbro and granite.
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