Caliber Definition

kălə-bər
noun
The size of a bullet or shell as measured by its diameter.
Webster's New World
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.
American Heritage
The diameter of a cylindrical body or of its hollowed interior.
Webster's New World
The diameter of the bore of a gun, usually measured in hundredths of inches or in millimeters.
Webster's New World
Degree of worth or value of a person or thing; quality or ability.
Webster's New World

Other Word Forms of Caliber

Noun

Singular:
caliber
Plural:
calibers

Origin of Caliber

  • French calibre from Italian calibro from Arabic qālib, qālab mold, shoe tree from Greek kālapous shoemaker's last kālon wood pous foot ped- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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