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chloral hydrate

(Encyclopedia)chloral hydrate klōrˈəl hīˈdrāt [key], central nervous system depressant that is widely used as a hypnotic, or sleep-inducing drug. Chloral hydrate is the common ingredient, along with alcohol, ...

Hall, Marshall

(Encyclopedia)Hall, Marshall, 1790–1857, English physician and physiologist, M.D. Univ. of Edinburgh, 1812. He practiced medicine in Nottingham and in London. He opposed bloodletting and devised a method of artif...

Gaucher's disease

(Encyclopedia)Gaucher's disease gōshāzˈ [key], rare genetic disease involving a deficiency of an enzyme, glucocerebrosidase, which normally breaks down certain body glycolipids (i.e., lipids (fats) that have a s...

ataxia

(Encyclopedia)ataxia ətăkˈsēə [key], lack of coordination of the voluntary muscles resulting in irregular movements of the body. Ataxia can be brought on by an injury, infection, or degenerative disease of the...

nalorphine

(Encyclopedia)nalorphine nălˈərfēn [key], derivative of morphine that acts to reverse the effects of morphine and other narcotics. It counteracts narcotic-induced nervous system and respiratory system depressio...

Bell, Sir Charles

(Encyclopedia)Bell, Sir Charles, 1774–1842, Scottish anatomist and surgeon. He became professor of anatomy and surgery at the Royal College of Surgeons, London, in 1824 and was professor of surgery at the Univ. o...

sedative

(Encyclopedia)sedative, any of a variety of drugs that relieve anxiety. Most sedatives act as mild depressants of the nervous system, lessening general nervous activity or reducing the irritability or activity of a...

psychosomatic medicine

(Encyclopedia)psychosomatic medicine sīˌkōsōmătˈĭk [key], study and treatment of those emotional disturbances that are manifested as physical disorders. The term psychosomatic emphasizes essential unity of t...

Willis, Thomas

(Encyclopedia)Willis, Thomas, 1621–75, English physician and anatomist. He became professor at Oxford in 1660 and in 1666 established a practice in London. An authority on the brain and the nervous system, he dis...

sneeze

(Encyclopedia)sneeze, involuntary violent expiration of air through the nose and mouth. It results from stimulation of the nervous system in the nose, causing sudden contraction of the muscles of expiration. The st...