quicksilver

[kwik-sil-ver]
noun
1.
the metallic element mercury.
verb (used with object)
2.
to amalgamate (metal) with mercury.

Origin:
before 1000; Middle English qwyksilver, Old English cwicseolfor (translation Latin argentum vīvum) literally, living silver

quicksilvery, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
quicksilver (ˈkwɪkˌsɪlvə)
 
n
1.  another name for mercury
 
adj
2.  rapid or unpredictable in movement or change: a quicksilver temper
 
[Old English, from cwicu alive (see quick) + seolfer silver]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

quicksilver
O.E. cwicseolfor, translating L. argentum vivum (cf. It. argento vivo), lit. "living silver;" so called from its liquid mobility. See quick + silver.
Online Etymology Dictionary, © 2010 Douglas Harper
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FOLDOC
Computing Dictionary

Quicksilver definition

database
A dBASE-like compiler for MS-DOS from WordTech.
(1995-05-11)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
He moves with quicksilver wit, technical brilliance and crystalline clarity.
His face, for all its quicksilver changes of expression, remains essentially opaque.
It is an extremely heavy metal with a silvery-white color that accounts for the name quicksilver that is often given to it.
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