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Thoreau, Henry David

(Encyclopedia)Thoreau, Henry David thôrˈō, thərōˈ [key], 1817–62, American author, naturalist, social activist, and philosopher, b. Concord, Mass., grad. Harvard, 1837. Thoreau is considered one of the most...

multiculturalism

(Encyclopedia)multiculturalism or cultural pluralism, a term describing the coexistence of many cultures in a locality, without any one culture dominating the region. By making the broadest range of human differenc...

Manitoba, University of

(Encyclopedia)Manitoba, University of, at Winnipeg, Man., Canada; provincially supported, coeducational; chartered 1877. It has faculties of arts and sciences, graduate studies, law, medicine, dentistry, pharmacy, ...

water table

(Encyclopedia)water table, the top zone of soil and rock in which all voids are saturated with water. The level of the water table varies with topography and climate, and depends on the degree to which the groundwa...

Davidson, Donald Herbert

(Encyclopedia)Davidson, Donald Herbert, 1917–2003, American philosopher, b. Springfield, Mass., grad. Harvard (B.A., 1939; Ph.D., 1949). A student of W. V. Quine, Davidson emerged as one of the major figures in p...

Huxley, Thomas Henry

(Encyclopedia)Huxley, Thomas Henry, 1825–95, English biologist and educator, grad. Charing Cross Hospital, 1845. Huxley gave up his own biological research to become an influential scientific publicist and was th...

Axel, Richard

(Encyclopedia)Axel, Richard ăkˈsĕl [key], 1946–, American pathologist and biochemist, b. New York City, M.D. Johns Hopkins, 1970. A professor at Columbia from 1978, Axel was awarded, with Linda B. Buck, the 20...

Pap test

(Encyclopedia)Pap test, Pap smear, or Papanicolaou test păpˌənēˈkəlou [key], medical procedure used to detect cancer of the uterine cervix (see uterus). A scraping, brushing, or smear, is taken from the surf...

Ramapithecus

(Encyclopedia)Ramapithecus räməpəthēˈkəs, –pĭthˈə– [key], former name for an extinct group of primates that lived from about 12 to 14 million years ago, for a time regarded as a possible ancestor of Au...

ultrasonics

(Encyclopedia)ultrasonics, study and application of the energy of sound waves vibrating at frequencies greater than 20,000 cycles per second, i.e., beyond the range of human hearing. The application of sound energy...