noun, plural chron·os.

Origin of chrono

by shortening; see -o


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

Examples from the Web for chrono

Historical Examples of chrono

  • He stopped by Jeff Arnold, who was jotting down figures from the chrono.

  • Crag looked at the chrono, then swung his eyes to the instruments.

  • I look at my chrono and see that in five minutes the hopper will come.

    The Lost Kafoozalum

    Pauline Ashwell

  • A look at the chrono sent the dream out of his head and he hurried through shaving and dressing.

    Double Take

    Richard Wilson

  • I come back and see by my chrono that the blood-seal should be set; I get my hands under the computer.

    The Lost Kafoozalum

    Pauline Ashwell

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.