[ sahy-al ]
/ ˈsaɪ æl /
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the assemblage of rocks, rich in silica and alumina, that comprise the continental portions of the upper layer of the earth's crust.
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OTHER WORDS FROM sialsi·al·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use sial in a sentence
During the Mutiny of 1857 the Sial leader again proved his loyalty by serving in person on the British side.
Sialogogue, sī-al′o-gog, n. a drug which increases the secretion of saliva—also Sial′agogue.
British Dictionary definitions for sial
/ (ˈsaɪəl) /
the silicon-rich and aluminium-rich rocks of the earth's continental upper crust, the most abundant individual rock being granite
Derived forms of sialsialic (saɪˈælɪk), adjective
Word Origin for sial
C20: si (licon) + al (uminium)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for sial
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.