anachronism (representation of someone as existing or something as happening in other than the chronological, proper, or historical order)
chronaxie (the minimum interval of time necessary to electrically stimulate a muscle or nerve fiber, using twice the minimum current needed to elicit a threshold response)
chronic (of long duration; continuing; lasting for a long period of time or marked by frequent recurrence)
chronicle (an extended account in prose or verse of historical events, sometimes including legendary material, presented in chronological order and without authorial interpretation or comment)
chronobiology (the study of the effects of time and rhythmical phenomena on life processes)
chronogram (the record produced by a chronograph)
chronograph (an instrument that registers or graphically records time intervals such as the duration of an event)
chronological (arranged in order of time of occurrence)
chronology (the science that deals with the determination of dates and the sequence of events)
chronometer (an exceptionally precise timepiece)
chronometry (the scientific measurement of time)
chronoscope (an optical instrument for the precise measurement of very small time intervals)
crony (a long-time close friend or companion)
diachronic (of or concerned with phenomena, especially of language, as they change through time)
geochronology (the chronology of the earth's history as determined by geologic events)
isochronal (equal in duration; characterized by or occurring at equal intervals of time)
synchronism (coincidence in time; simultaneousness)
synchronous (occurring or existing at the same time)
Definitions are taken from:
The American Heritage® Dictionary of the English Language, Third Edition copyright © 1992 by Houghton Mifflin Company.
Electronic version licensed from InfoSoft International, Inc. All rights reserved.
Webster's Third New International Dictionary, Unabridged. Merriam-Webster, 2002.
http://unabridged.merriam-webster.com (30 Sep. 2006).
English-Word Information: Word Info about English Vocabulary (wordinfo.info).