monomania

[ mon-uh-mey-nee-uh, -meyn-yuh ]
/ ˌmɒn əˈmeɪ ni ə, -ˈmeɪn yə /

noun

(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

From New Latin, dating back to 1815–25; see origin at mono-, -mania

OTHER WORDS FROM monomania

mon·o·ma·ni·ac [mon-uh-mey-nee-ak] /ˌmɒn əˈmeɪ niˌæk/, nounmon·o·ma·ni·a·cal [mon-uh-muh-nahy-uh-kuh l] /ˌmɒn ə məˈnaɪ ə kəl/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for monomaniacal

British Dictionary definitions for monomaniacal

monomania
/ (ˌmɒnəʊˈmeɪnɪə) /

noun

an excessive mental preoccupation with one thing, idea, etc

Derived forms of monomania

monomaniac, noun, adjectivemonomaniacal (ˌmɒnəʊməˈnaɪəkəl), 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

Medicine definitions for monomaniacal

monomania
[ mŏn′ə-mānē-ə, -mānyə ]

n.

Pathological obsession with one idea or subject, as in paranoia.

Other words from monomania

mon′o•mani•ac′ (-mānē-ăk′) n.mon′o•ma•nia•cal (-mə-nīə-kəl) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.