- a magnesium-silicate mineral, MgSiO3, the most abundant mineral on earth, making up around 70 percent of the lower mantle.
More Definitions
- YELLOW-DOG CONTRACT (noun) Definition, Meaning & Examples
- ASSORT (noun) Definition, Meaning & Examples
- UNCONSECRATED (noun) Definition, Meaning & Examples
- CORRAL (noun) Definition, Meaning & Examples
- FAR BE IT FROM ONE TO (noun) Definition, Meaning & Examples
- PERCH (noun) Definition, Meaning & Examples