| PS | of or relating to psychopharmacology |
|---|---|
| PS | the study of drugs that affect the mind |
| PS | a psychologist trained in psychophysics |
| PS | the branch of psychology concerned with quantitative relations between physical stimuli and their psychological effects |
| PS | the branch of psychology that is concerned with the physiological bases of psychological processes |
| PS | a conductor of souls to the afterworld |
| PS | epiphytic orchids of Central and South America formerly included in genus Oncidium |
| PS | orchid of South and Central America having flowers similar to but smaller than Psychopsis papilio |
| PS | orchid of South America and Trinidad having large yellow and reddish-brown flowers |
| PS | of or relating to the mental or emotional attitudes about sexuality |
| PS | (psychoanalysis) the process during which personality and sexual behavior mature through a series of stages: first oral stage and then anal stage and then phallic stage and then latency stage and finally genital stage |
| PS | the mental representation of sexual activities |