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Related to calomel: calomel electrode
A white or brown tasteless powder, Hg2Cl2, used as an insecticide and formerly as a purgative. Also called mercurous chloride.
[Probably from New Latin calomelās : Greek kalos, beautiful + melās, black.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Elements & Compounds) a colourless tasteless powder consisting chiefly of mercurous chloride, used medicinally, esp as a cathartic. Formula: Hg2Cl2
[C17: perhaps from New Latin calomelas (unattested), literally: beautiful black (perhaps so named because it was originally sublimed from a black mixture of mercury and mercuric chloride), from Greek kalos beautiful + melas black]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
cal•o•mel(ˈkæl əˌmɛl, -məl)
a white, tasteless powder, Hg2Cl2, used chiefly as a purgative and fungicide. Also called mercurous chloride.
[1670–80; < New Latin calomelas]
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|Noun||1.||calomel - a tasteless colorless powder used medicinally as a cathartic|
atomic number 80, Hg, hydrargyrum, mercury, quicksilver - a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
chloride - any compound containing a chlorine atom
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