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kiva

(Encyclopedia)kiva kēˈvə [key], large, underground ceremonial chamber, peculiar to the ancient and modern Pueblo. The modern kiva probably evolved from the slab houses (i.e., storage pits and dwellings that were...

Hart, Oliver Simon D'Arcy

(Encyclopedia)Hart, Oliver Simon D'Arcy, 1948–, British-American economist, b. London, England, Ph.D. Princeton, 1974. He has been a professor at the London School of Economics (1981–85), the Massachusetts Inst...

histone

(Encyclopedia)histone hĭsˈtōn [key], any of a class of protein molecules found in the chromosomes of eukaryotic cells. They complex with the DNA (see nucleic acid) and pack the DNA into tight masses of chromatin...

anthracene

(Encyclopedia)CE5 anthracene ănˈthrəsēn [key], C14H10, solid organic compound derived from coal tar. It melts at 218℃ and boils at 354℃. When pure it is colorless and has a violet fluorescence; it darken...

Gibbons v. Ogden

(Encyclopedia)Gibbons v. Ogden, case decided in 1824 by the U.S. Supreme Court. Aaron Ogden, the plaintiff, had purchased an interest in the monopoly to operate steamboats that New York state had granted to Robert ...

amphitheater

(Encyclopedia)amphitheater ămˈfəthēˌətər, ămˈpə– [key], open structure used for the exhibition of gladiatorial contests, struggles of wild beasts, sham sea battles, and similar spectacles. There is no G...

Hoyle, Sir Fred

(Encyclopedia)Hoyle, Sir Fred hoil [key], 1915–2001, British astrophysicist and mathematician, b. Bingley, Yorkshire. During the years of World War II, Hoyle primarily worked on technical problems related to rada...

de Duve, Christian

(Encyclopedia)de Duve, Christian (Christian Renē Maria Joseph de Duve), 1917–2013, Belgian cell biologist, b. England, M.D., Catholic Univ. of Louvain, 1941. He joined the faculty at Louvain in 1947 and at the R...

Eustachian tube

(Encyclopedia)Eustachian tube yo͞ostāˈshən [key] [for Bartolomeo Eustachi], a hollow structure of bone and cartilage extending from the middle ear to the rear of the throat, or pharynx, technically known as the...

semiotics

(Encyclopedia)semiotics or semiology, discipline deriving from the American logician C. S. Peirce and the French linguist Ferdinand de Saussure. It has come to mean generally the study of any cultural product (e.g....