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
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British Dictionary definitions for chrono-
before a vowel chron-
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
Medicine definitions for chrono-
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.