April 19,1775 The Battle of Lexington and Concord, which occurred on April 19, 1775, is when the American Revolutionary War began.
mental illness. noun mental illÂ·ness. Legal Definition of mental illness. 1 : mental disease. 2 : a mental condition marked primarily by sufficient disorganization of personality, mind, and emotions to seriously impair the normal psychological and often social functioning of the individual âcalled also mental disorder.
mental illness noun. [uncountable] the state of feeling ill or of having a disease He missed five days of school because of illness. patients who are recovering from major surgery or serious illness. Synonyms and related words. General words for illnesses, diseases and medical conditions:illness, disease, sickness... Explore Thesaurus. a. [countable] a particular disease, or a period of being ill She had had no serious illnesses, and had never been in hospital.