This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A psychopath.

adj. Crazy; insane.

adj. Psychotic, or otherwise insane.

n. A person who is psychotic or otherwise insane.

n. A person who acts in a bizarre or dangerous manner.

n. A class, at a college or university, in which psychology is taught.

"As Zeh puts it, von Neumann's motivation for introducing collapse was to save what he called psycho-physical parallelism (arguably supervenience of the mental on the physical: only one mental state is experienced, so there should be only one corresponding component in the physical state)."

sick person    diseased person    sufferer   

psyche    psycho   

paranoiac    paranoid    schizophrenic    cataleptic   

psychobiology    psychoacoustics    psychodrama    psychobiography    psychobabble    psychodynamics    psychiatry    psychiatric    psychoanalyze    psychochemical   

serial-killer    psycho-analyst    hard-bitten    psychopathic    mutie    geriatric    stupe    message    dopey    caveman