- (no longer in technical use) a psychosis characterized by thoughts confined to one idea or group of ideas.
- an inordinate or obsessive zeal for or interest in a single thing, idea, subject, or the like.
Origin of monomania
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for monomaniac
Had much study made of him a monomaniac babbling in a dream of absurdities?The Bacillus of Beauty
"I shall not say anything," said the monomaniac, with a wonderful and peaceful face.The Innocence of Father Brown
G. K. Chesterton
I am full of the fellow; a little more, and he'll make a monomaniac of me.Put Yourself in His Place
"She is a monomaniac on the subject, I should imagine," observed Albert.Uncle Terry
Charles Clark Munn
She became a monomaniac, and of that sort of which rulers of men are made.The Threatening Eye
Edward Frederick Knight
- an excessive mental preoccupation with one thing, idea, etc
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 monomaniac
Online Etymology Dictionary, © 2010 Douglas Harper
- Pathological obsession with one idea or subject, as in paranoia.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.