plutonism

Definitions

1. Alternative letter-case form of plutonism.
   alt-of, uncountable
2. The old geological theory that the rocks forming the Earth were formed in fire by volcanic activity, with a continuing gradual process of weathering and erosion, then deposited on the sea bed, re-formed into layers of sedimentary rock by heat and pressure, and raised again.
   countable, uncountable

Equivalents

CEFR level