\Mon`oma"ni*ac\, n.
A person affected by monomania.

\Mon`oma"ni*ac\, Monomaniacal \Mon`oma"ni*a*cal\, a.
[Cf. F. monomaniaque.]
Affected with monomania, or partial derangement of intellect;
caused by, or resulting from, monomania; as, a monomaniacal
delusion.