amalgam

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amalgam

amalgam (əmălˈgəm), alloy containing mercury. The alloy may be liquid or solid, depending on the proportion of mercury, although all naturally occurring amalgams, i.e., those of gold and silver, are solid. Amalgams are widely used. Silver, gold, and copper amalgams are used in dentistry, and tin amalgam is used in making mirrors.
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amalgam

[ə′mal·gəm]
(metallurgy)
An alloy of mercury.
(mineralogy)
A silver mercury alloy occurring in nature.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

amalgam

1. an alloy of mercury with another metal, esp with silver
2. a rare white metallic mineral that consists of silver and mercury and occurs in deposits of silver and cinnabar
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005