[ 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
Words nearby sial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for sial
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.