-logy(redirected from 'ology)
Also found in: Medical.
1. Discourse; expression: phraseology.
2. Science; theory; study: dermatology; sexology.
[Middle English -logie, from Old French, from Latin -logia, from Greek -logiā (from logos, word, speech; see leg- in Indo-European roots) and from -logos, one who deals with (from legein, to speak; see leg- in Indo-European roots).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n combining form
1. indicating the science or study of: musicology.
2. indicating writing, discourse, or body of writings: trilogy; phraseology; martyrology.
[from Latin -logia, from Greek, from logos word; see logos]
-logical, -logic adj combining form
-logist n combining form
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
adj. -gi•er, -gi•est.
lacking physical or mental energy or vitality; sluggish; dull; lethargic.
[1840–50, Amer.; perhaps < Dutch log heavy, cumbersome + -y1]
a combining form meaning “field of scientific study, discipline,” used also to denote the body of principles, theories, data, etc., produced by learned endeavor ( archaeology; pathology; theology); “set of abstract notions” ( ideology; methodology); “set of texts” ( trilogy); “systematic listing” ( genealogy; necrology); “linguistic usage” (tautology; phraseology).
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.