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Denotation vs. Connotation

CD

2.
Civil Defense.
3.
Community Development.

Cd

Symbol, Chemistry
1.

cd

1.
candela; candelas.
2.
Also, cd. cord; cords.

C/D

or c/d

C.D.

2.
Civil Defense.
3.
civil disobedience.
4.
Congressional District.

c.d.

1.
cash discount.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for CD
Contemporary Examples
Historical Examples
British Dictionary definitions for CD

cd1

abbreviation
1.
cash discount
symbol
2.
candela

cd2

abbreviation
1.
Democratic Republic of Congo

Cd

abbreviation
1.
(in Britain) command (paper)
Chemical symbol
2.
cadmium

CD

abbreviation
1.
compact disc
2.
Civil Defence (Corps)
3.
Corps Diplomatique (Diplomatic Corps)
4.
Conference on Disarmament: a United Nations standing conference, held in Geneva, to negotiate a global ban on chemical weapons
5.
(in the US and Canada) certificate of deposit Also C.D.

c/d

abbreviation
1.
carried down
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
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Word Origin and History for CD

1979 as an abbreviation of compact disc as a system of information storage.

Online Etymology Dictionary, © 2010 Douglas Harper
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CD in Medicine

cd abbr.
candela

Cd
The symbol for the element cadmium.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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CD in Science
Cd  
The symbol for cadmium.
cadmium
  (kād'mē-əm)   
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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CD in Technology

1. change directory.
2. The country code for the Democratic Republic of the Congo (formerly Zaire, zr).
(1999-01-27)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for CD

cd

candela

Cd

cadmium

CD

1.
certificate of deposit
2.
cesarean delivery
3.
civil defense
4.
cluster of differentiation
5.
collision detection
6.
compact disc
7.
cycle day

c.d.

cash discount

C/D

1.
carried down
2.
certificate of deposit
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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