sial meaning

UK US

sial (noun): the granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum.

Definition of sial

  1. the granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum

    Type of: rock

Scrabble score: 4 (letter breakdown)

Word lists: words starting with SI · words ending in AL · 4-letter words

More about sial on Wikipedia.