sialic

Variant of sial

sial definition

sial (sī′al′)

noun

Geol. the upper layer of the crust of the earth, consisting of rocks rich in silica and alumina

Etymology: si(licon) + al(uminum)

Related Forms:

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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