from The Century Dictionary and Cyclopedia
- Pertaining to, belonging to or having the characteristics of the group of aluminous, ferromagnesian, and calcic silicates, rock-making minerals, such as augite, hornblende, and biotite. See quantitative classification of igneous rocks, under rock.
Sorry, no etymologies found.
Sorry, no example sentences found.
Wordnik is becoming a not-for-profit! Read our announcement here.