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caliber

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cal⋅i⋅ber

[kal-uh-ber]
–noun
1. the diameter of something of circular section, esp. that of the inside of a tube: a pipe of three-inch caliber.
2. Ordnance. the diameter of the bore of a gun taken as a unit of measurement.
3. degree of capacity or competence; ability: a mathematician of high caliber.
4. degree of merit or excellence; quality: the high moral caliber of the era.
Also, especially British, cal⋅i⋅bre.


Origin:
1560–70; var. of calibre < MF ≪ Ar qālib mold, last < Gk kālápous shoe last, equiv. to kāla- comb. form of kâlon wood + poús foot (see -pod )


cal⋅i⋅bered; especially British, cal⋅i⋅bred, adjective


4. worth, distinction.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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cal·i·ber   (kāl'ə-bər)   
n.  
  1. Abbr. cal.

    1. The diameter of the inside of a round cylinder, such as a tube.

    2. The diameter of the bore of a firearm, usually shown in hundredths or thousandths of an inch and expressed in writing or print in terms of a decimal fraction: .45 caliber.

    3. The diameter of a large projectile, such as an artillery shell, measured in millimeters or in inches.

  2. Degree of worth; quality: a school of high caliber; an executive of low caliber.


[French calibre, from Italian calibro, from Arabic qālib, qālab, mold, shoe tree, from Greek kālapous, shoemaker's last : kālon, wood + pous, foot; see ped- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: cal·i·ber
Variant: or chiefly British cal·i·bre /'kal-&-b&r, Brit also k&-'lE-/
Function:noun
: the diameter of a round or cylindrical body; especially : the internal diameter of a hollow cylinder
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

caliber cal·i·ber (kāl'ə-bər)
n.
The diameter of the inside of a round cylinder, such as a tube.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

caliber

in firearms, unit of measure indicating the interior, or bore, diameter of a gun barrel and the diameter of the gun's ammunition; or the length of a gun expressed in relation to its interior diameter (now used only of naval and coastal defense guns). See bore

Learn more about caliber with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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