adjective
- resembling or having the characteristics of gabbro, a coarse-grained igneous rock composed mainly of feldspar and pyroxene
Usage: geology; technical
Examples
- The gabbroid texture of the rock sample indicated it had cooled slowly beneath the Earth's surface.
- Geologists identified the gabbroid composition of the intrusion through microscopic analysis.
- The gabbroid minerals in the outcrop suggested a mafic igneous origin.