'Monomania' definitions:

Definition of 'monomania'

From: WordNet
noun
A mania restricted to one thing or idea [syn: monomania, possession]

Definition of 'Monomania'

From: GCIDE
  • Monomania \Mon`o*ma"ni*a\, n. [Mono- + mania.] Derangement of the mind in regard of a single subject only; also, such a concentration of interest upon one particular subject or train of ideas to show mental derangement. [1913 Webster]
  • Syn: Insanity; madness; alienation; aberration; derangement; mania. See Insanity. [1913 Webster]

Synonyms of 'monomania'

From: Moby Thesaurus