[haw-rol-uh-jee, hoh-]

Origin of horology

1810–20; < Greek hōro- (combining form of hṓra hour) + -logy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for horology

Historical Examples of horology

British Dictionary definitions for horology


  1. the art or science of making timepieces or of measuring time
Derived Formshorologic (ˌhɒrəˈlɒdʒɪk) or horological, adjective
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 horology

science of time, 1819, probably from Greek hora "hour" (see hour) + -logy. Earlier it meant "clock, clock dial" (c.1500), from Latin horologium. Related: Horologist.

Online Etymology Dictionary, © 2010 Douglas Harper

horology in Science


  1. The science of measuring time.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.