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deodorizer

(Encyclopedia)deodorizer or deodorant, substance used to absorb or eliminate offensive odors. Disinfectants such as hydrogen peroxide, chlorine, and chlorine compounds eliminate odors caused by microorganisms. Adso...

Cooper, Leon Neil

(Encyclopedia)Cooper, Leon Neil, 1930–, American neuroscientist, b. New York City, Ph.D. Columbia, 1954. Cooper was a researcher at the Univ. of Illinois from 1955 to 1957 and at Ohio State Univ. from 1957 to 195...

endorphins

(Encyclopedia)endorphins ĕndôrˈfĭnz [key], neurotransmitters found in the brain that have pain-relieving properties similar to morphine. There are three major types of endorphins: beta endorpins, found primaril...

embolus

(Encyclopedia)embolus ĕmˈbələs [key], foreign matter circulating in and obstructing a blood vessel. It may be a portion of a clot that has separated from the wall of a vessel (see thrombosis), a bubble of gas o...

Schneiderman, Rose

(Encyclopedia)Schneiderman, Rose shnīˈdərmən [key], 1884–1972, American labor leader, b. Poland. She emigrated to the United States in 1890. After working as a lining stitcher in a cap factory, she was instru...

Sherrington, Sir Charles Scott

(Encyclopedia)Sherrington, Sir Charles Scott, 1857–1952, English neurophysiologist, educated at Cambridge. He was professor of physiology at the universities of Liverpool and London and at Oxford. He contributed ...

Tugwell, Rexford Guy

(Encyclopedia)Tugwell, Rexford Guy, 1891–1979, American economist and political scientist, b. Chautauqua co., N.Y., grad. Wharton School, Univ. of Pennsylvania (B.S., 1915; Ph.D., 1922). He taught economics at th...

touch

(Encyclopedia)touch, tactile sensation received by the skin, enabling the organism to detect objects or substances in contact with the body. End organs (nerve endings) in the skin convey the impression to the brain...

spastic paralysis

(Encyclopedia)spastic paralysis, form of paralysis in which the part of the nervous system that controls coordinated movement of the voluntary muscles is disabled. In spastic paralysis the nerves controlling muscle...

speech defect

(Encyclopedia)speech defect, any condition that interferes with the mental formation of words or their physical production. Speech defects in children generally become apparent in the early school years. Speech pro...