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arrester

[uh-res-ter]
noun
  1. Also ar·res·tor. a person or thing that arrests.
  2. Electricity. lightning arrester.
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Origin of arrester

First recorded in 1400–50, arrester is from the late Middle English word arester. See arrest, -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for arrestor

arrester

noun
  1. a person who arrests
  2. a thing that stops or checks motion, esp a mechanism of wires for slowing aeroplanes as they land on an aircraft carrier
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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