/
ˈmeɪnɪak/
n.
- a person exhibiting extremely wild or violent behaviour.
- informal an obsessive enthusiast.
- Psychiatry, archaic a person suffering from mania.
Derivative
- maniacal
/məˈnʌɪək(ə)l/
adj. - maniacally
/məˈnʌɪək(ə)li/
adv.
Etymology
C16: via late L. from late Gk maniakos, from mania (see mania).