WordReference Random House Unabridged Dictionary of American English © 2026
mes•o•crat•ic
(mez′ə krat′ik, mes′-, mē′zə-, -sə-),USA pronunciation adj. [Petrol.]
- Rocks(of an igneous rock) composed of light and dark minerals in nearly equal amounts.
- meso- + -crat + -ic 1855–60