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rimfire

[rim-fahyuh r]
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adjective
  1. (of a cartridge) having the primer in a rim encircling the base.Compare center-fire(def 1).
  2. (of a firearm) designed for the use of such cartridges.

Origin of rimfire

An Americanism dating back to 1865–70; rim + fire
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018