| psychopathology |
the scientific study of mental disorders. [2 definitions] |
| psychopathy |
mental disease, disorder, or malfunction. |
| psychopharmacology |
the study of the effect of drugs on the mind, emotions, and behavior. |
| psychosexual |
of or pertaining to the relationship or dynamic between psychological phenomena and sexuality. |
| psychosis |
serious mental disorder that affects all aspects of the personality and involves withdrawal from reality. |
| psychosocial |
of, pertaining to, affected by, or involving the interaction between the individual personality and its social environment. |
| psychosomatic |
of or relating to physical diseases or disorders that are caused or aggravated by emotional factors. |
| psychotherapy |
the science or technique of treating mental and emotional problems with psychological methods rather than drugs or medications. |
| psychotomimetic |
pertaining to or designating drugs that tend to cause symptoms of a psychotic state. |
| psychotoxic |
of, pertaining to, or designating an agent that causes brain damage, such as certain drugs, excessive alcohol, or the like. |
| psychotropic |
affecting the activities of the mind, as a tranquilizer, hallucinogen, or the like. |
| Pt |
symbol of the chemical element platinum. |
| Pt. |
abbreviation of "Point." |
| pt. |
abbreviation of "point." [2 definitions] |
| PTA |
abbreviation of "Parent-Teacher Association." |
| ptarmigan |
any of a variety of grouse that are found in cold, northern regions, and whose brown plumage is replaced by white in the winter. |
| PT boat |
a small, swift, highly maneuverable torpedo boat, used esp. to patrol and torpedo enemy merchant ships. |
| pteridophyte |
in some systems of classification, a division of plants that have true vascular roots, stems, and leaves and that reproduce by means of spores, such as ferns, club mosses, or horsetails. |
| ptero- |
feather; wing. |
| pterodactyl |
any of various extinct flying reptiles. |
| pterosaur |
a flying reptile of the Mesozoic era characterized as having a birdlike beak and membranous wings supported by an exceptionally long fourth digit of each forelimb. |