- (n.) A dark-colored, basic, igneous rock, composed essentially of pyroxene and a triclinic feldspar with magnetic iron. By many authors it is considered equivalent to a coarse-grained basalt.
- (n.) Coarse-grained basalt.
- (n.) A dark, crystalline, igneous rock, chiefly pyroxene with labradorite.
- (n.) Diabase.
- (n.) Any dark, igneous rock composed chiefly of silicates of iron and magnesium with some feldspar.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). dolerite. Retrieved September 22, 2026, from http://smartdefine.org/dolerite/definitions/1999864 |
| Chicago | Webster's. 2011. "dolerite" http://smartdefine.org/dolerite/definitions/1999864 (accessed September 22, 2026). |
| Harvard | Webster's 2011, dolerite, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/dolerite/definitions/1999864>. |
| MLA | Webster's. "dolerite" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/dolerite/definitions/1999864> |