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Origin of isochronal

1670–80; < New Latin isochron(us) (< Greek isóchronos equal in age or time; see iso-, chron-) + -al1
Related formsi·soch·ro·nal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for isochronal



  1. having the same duration; equal in time
  2. occurring at equal time intervals; having a uniform period of vibration or oscillation
Derived Formsisochronally or isochronously, adverbisochronism, noun

Word Origin for isochronal

C17: from New Latin isochronus, from Greek isokhronos, from iso- + khronos time
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