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psychedelic of, relating to, or producing heightened or distorted sensory perceptions, hallucinations, and sometimes extreme behavioral patterns. [3 definitions]
psychiatrist a doctor who specializes in treating mental and emotional disorders.
psychiatry the medical science or practice of diagnosing, treating, and preventing mental and emotional disorders.
psychic of, caused by, or pertaining to nonphysical, spiritual, or supernatural processes or influences. [4 definitions]
psycho (slang) a psychopath. [2 definitions]
psycho- mind. [2 definitions]
psychoactive of a chemical agent or drug, affecting or capable of affecting the mind or mental functions.
psychoanalysis a method of studying and treating mental disorders and illnesses by analyzing dreams, early childhood memories, and other experiences as keys to the subconscious mind.
psychoanalyst one who specializes in the study and techniques of psychoanalysis.
psychoanalyze to subject to psychoanalysis.
psychobabble (informal) talk or writing that uses the language of psychology in a superficial or irrelevant way.
psychobiology the branch of biology that deals with the interactions between the mental processes and the body of the individual. [2 definitions]
psychodrama a method of psychological group therapy in which individuals take part in dramatizations of emotionally important situations.
psychodynamics (used with sing. verb) the psychological study and analysis of the unconscious processes of behavior and its motivation.
psychogenesis the beginning or development of the mind. [2 definitions]
psychogenic originating in the mind or in mental conditions or processes.
psychographics (used with a sing. verb) in marketing and advertising, the study of consumers' opinions, values, attitudes, and the like. [2 definitions]
psychokinesis the apparent ability to move or otherwise affect inanimate or remote objects through the exercise of mental or psychic powers.
psycholinguistics (used with a sing. verb) the study of the interaction between the language and the attitudes and behavior of a person.
psychological of or relating to psychology. [2 definitions]
psychological moment the most propitious time to introduce or try something and gain acceptance for it.