Mŏn'o-mā'ni-ă, n.

n. [It. & Sp. monomania, Fr. monomanie, from Gr. μόνος, single, and μανία, madness, mania.] Derangement of a single faculty of the mind, or with regard to a particular subject only.

Synonyms—Insanity; madness; alienation; aberration; derangement; mania. See INSANITY.