The New Dictionary of Cultural Literacy, Third Edition. 2002.
psychiatry
(seye-KEYE-uh-tree, si-KEYE-uh-tree) The medical science that studies and treats mental illness and mental maladjustment. Psychiatrists treat mental disorders; psychologists study mental activities, whether healthy or disordered. In the United States, psychiatrists usually hold the degree of doctor of medicine (M.D.) and may prescribe medication for their patients.
