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Black, Greene Vardiman

(Encyclopedia)Black, Greene Vardiman, 1836–1915, American dentist, b. Scott co., Ill. Professor at Chicago College of Dental Surgery (now part of Loyola Univ.) from 1883 to 1889 and professor (from 1891) and dean...

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...

Davis, Paulina Wright

(Encyclopedia)Davis, Paulina Wright, 1813–76, American lecturer and suffragist, b. Bloomfield, N.Y. Born Paulina Kellogg, she was married in 1833 to a merchant, Francis Wright, who died two years later. In 1849 s...

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...

Polypodiophyta

(Encyclopedia)Polypodiophyta pŏlˌēpōˌdēŏfˈətə [key], division of the plant kingdom consisting of the plants commonly called ferns. The ferns are vascular plants with stems, roots, and leaves. The small an...

De Bary, Heinrich Anton

(Encyclopedia)De Bary, Heinrich Anton hīnˈrĭkh änˈtōn də bärēˈ [key], 1831–88, German botanist. He was professor at the universities of Freiburg in Breisgau (1855–66) and Halle (1867–72) and first r...

aerobics

(Encyclopedia)aerobics ârōˈbiks [key], [Gr.,=with oxygen], system of endurance exercises that promote cardiovascular fitness by producing and sustaining an elevated heart rate for a prolonged period of time, the...

artery

(Encyclopedia)artery, blood vessel that conveys blood away from the heart. Except for the pulmonary artery, which carries deoxygenated blood from the heart to the lungs, arteries carry oxygenated blood from the hea...

Brinton, Crane

(Encyclopedia)Brinton, Crane (Clarence Crane Brinton), 1898–1968, American historian, b. Winsted, Conn. He received his Ph.D. from Oxford in 1923 and began teaching at Harvard the same year, becoming full profess...

aorta

(Encyclopedia)CE5 Aorta aorta āôrˈtə [key], primary artery of the circulatory system in mammals, delivering oxygenated blood to all other arteries except those of the lungs. The human aorta, c.1 in. (2.54 c...