| occupational exposure | The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation. (12 Dec 1998) |
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| occupational groups | Members of the various professions (e.g., physicians) or occupations (e.g., police). (12 Dec 1998) |
| occupational health | The promotion and maintenance of physical and mental health in the work environment. (12 Dec 1998) |
| occupational health nursing | The practice of nursing in the work environment. (12 Dec 1998) |
| occupational health services | Health services for employees, usually provided by the employer at the place of work. (12 Dec 1998) |
| occupational lung disease | Fibrosis and scarring of the lungs secondary to the repeated inhalation of dust associated with some occupation. Examples include silica, asbestos and coal dust exposure. (27 Sep 1997) |
| occupational medicine | <study> A branch of medicine concerned with the treatment of patients with occupational and environmental illness and injury. (09 Oct 1997) |
| occupational neurosis | Professional neurosis, a disorder of a group of muscles used chiefly in one's occupation, marked by the occurrence of spasm, paresis, or incoordination on attempt to repeat the habitual movements; e.g., writer's cramp; probably a focal dystonia. Synonym: craft palsy, functional spasm. (05 Mar 2000) |
| occupational safety and health administration | One of the U.S. Agencies responsible for regulation of biotechnology. The major law under which the agency has regulatory powers is the Occupational Safety and Health act. (09 Oct 1997) |
| occupational spasm | Professional spasm, obsolete term for occupational dystonia. (05 Mar 2000) |
| occupational therapist | <specialist> An individual trained to help people manage the daily activities of living, such as dressing, grooming or cooking, and regaining vocational skills. (05 Mar 2000) |
| occupational therapy | A form of therapy that encourages and instructs manual activities for therapeutic or remedial purposes in mental and physical disorders. (27 Sep 1997) |
| occupational therapy department, hospital | Hospital department responsible for the administration and provision of any occupational or work activity for remedial purposes. (12 Dec 1998) |
| occupations | Crafts, trades, professions, or other means of earning a living. (12 Dec 1998) |
| ocean | The great body of salt water that covers mores than two thirds of the surface of the earth, any of its five principal geographical divisions, the Atlantic, Pacific, Indian, Arctic, and Antartic. (09 Oct 1997) |