Alternative form of psst

A composer of psalms / (capitalized) A composer of one of the Biblical Psalms

A person with a personality disorder indicated by a pattern of lying, cunning, manipulating, glibness, exploiting, heedlessness, arrogance, delusions of grandeur, sexual promiscuity, low self-control, disregard for morality, lack of acceptance of responsibility, callousness, and lack of empathy and remorse. Such an individual may be especially prone to violent and criminal offenses.

Exhibiting the behaviors and personality traits of a psychopath.

(dated) A psychopath.

A wild party where the drug acid is taken.

(psychiatry) Originating from or caused by state of mind; having a psychological rather than a physiological cause.

plural of pseudo-cereal (alternative spelling of pseudocereals).

(psychology) The advocacy of one course of action in such a way as to persuade someone to take an opposite course

(mathematics) A function of a complex variable obtained by differentiating the logarithm of a gamma function; the digamma function / (physics) The Schrödinger wave function