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verb (used with or without object)
  1. to extend equally through the same space or duration.
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Origin of coextend

First recorded in 1610–20; co- + extend
Related formsco·ex·ten·sion [koh-ik-sten-shuh n] /ˌkoʊ ɪkˈstɛn ʃən/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for coextend


  1. to extend or cause to extend equally in space or time
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Derived Formscoextension, noun
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