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[kad-mee-uh m] /ˈkæd mi əm/
a white, ductile divalent metallic element resembling tin, used in plating and in making certain alloys. Symbol: Cd; atomic weight: 112.41; atomic number: 48; specific gravity: 8.6 at 20°C.
1815-25; < Neo-Latin, equivalent to Latin cadm(īa) calamine (orig. Cadmēa terra < Greek Kadmeía gê Cadmean earth) + -ium -ium
Related forms
cadmic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for cadmic


a malleable ductile toxic bluish-white metallic element that occurs in association with zinc ores. It is used in electroplating, alloys, and as a neutron absorber in the control of nuclear fission. Symbol: Cd; atomic no: 48; atomic wt: 112.411; valency: 2; relative density: 8.65; melting pt: 321.1°C; boiling pt: 767°C
Word Origin
C19: from New Latin, from Latin cadmīa zinc ore, calamine, referring to the fact that both calamine and cadmium are found in the ore
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for cadmic
bluish-white metal, discovered 1817 by Ger. scientist Friedrich Strohmeyer, 1822, Mod.L., from cadmia, a word used by ancient naturalists for various earths and oxides, from Gk. kadmeia (ge) "Cadmean (earth)," from Kadmos "Cadmus," legendary founder of Boeotian Thebes. So called because first found in the vicinity of Thebes (Kadmeioi was an alternative name for "Thebams" since the time of Homer).
Online Etymology Dictionary, © 2010 Douglas Harper
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cadmic in Medicine

cadmium cad·mi·um (kād'mē-əm)
Symbol Cd
A soft metallic element occurring primarily in zinc, copper, and lead ores that is used in low-friction fatigue-resistant alloys, solders, batteries, nuclear reactor shields, and electroplating. Atomic number 48; atomic weight 112.41; melting point 321.7°C; boiling point 767°C; specific gravity 8.65; valence 2.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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cadmic in Science
Symbol Cd
A rare, soft, bluish-white metallic element that occurs mainly in zinc, copper, and lead ores. Cadmium is plated onto other metals and alloys to prevent corrosion, and it is used in rechargeable batteries and in nuclear control rods as a neutron absorber. Atomic number 48; atomic weight 112.41; melting point 320.9°C; boiling point 765°C; specific gravity 8.65; valence 2. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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