a combining form meaning “time,” used in the formation of compound words: chronometer.

Nearby words

  1. chronicle play,
  2. chronicle plays,
  3. chronicler,
  4. chronicles,
  5. chrono,
  6. chronobiology,
  7. chronogram,
  8. chronograph,
  9. chronographer,
  10. chronographic

Also especially before a vowel, chron-.

Origin of chrono-

< Greek, combining form of chrónos Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for chrono-


before a vowel chron-

combining form

indicating timechronology; chronometer

Word Origin for chrono-

from Greek 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

Word Origin and History for chrono-


before vowels chron-, word-forming element meaning "time," from Latinized form of Greek khrono-, comb. form of khronos "time, a defined time, a lifetime, a season, a while," which is of uncertain origin.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for chrono-




The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.