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interferon

(Encyclopedia)interferon ĭnˌtərfērˈŏn [key], any of a group of proteins produced by cells in the body in response to an attack by a virus. A cell infected by a virus releases minute amounts of interferons, wh...

kaleidoscope

(Encyclopedia)kaleidoscope kəlīˈdəskōp [key], optical instrument that uses mirrors to produce changing symmetrical patterns. Invented by the Scottish physicist Sir David Brewster in 1816, the device is usually...

planetary science

(Encyclopedia)planetary science or planetology, study of planets and planetary systems as a whole. Planetary science applies the theories and methods of traditional disciplines such as astronomy, geology, physics, ...

word processing

(Encyclopedia)word processing, use of a computer program or a dedicated hardware and software package to write, edit, format, and print a document. Text is most commonly entered using a keyboard similar to a typewr...

miracle

(Encyclopedia)miracle, preternatural occurrence that is viewed as the expression of a divine will. Its awe and wonder lie in the fact that the cause is hidden. The idea of the miracle occurs especially with the evo...

Kukai

(Encyclopedia)Kukai or Kobo-Daishi ko͞oˈkī, kōˈbō-dīˈshē [key], 774–835, Japanese priest, scholar, and artist, founder of the Shingon or “True Word” sect of Buddhism. Of aristocratic birth, he studie...

Sharpless, Karl Barry

(Encyclopedia)Sharpless, Karl Barry, 1941–, American chemist, b. Philadelphia, Ph.D. Stanford, 1968. Sharpless was a professor at the Massachusetts Institute of Technology (1970–77 and 1980–90) and at Stanfor...

Cuadra, Pablo Antonio

(Encyclopedia)Cuadra, Pablo Antonio, 1912–2002, Nicaraguan poet, b. Managua. Early in life, Cuadra became a member of the Vanguard literary movement and edited (1929) its journal. Influenced by Rubén Darío and ...

Delos

(Encyclopedia)Delos dēˈlôs [key], island, c.1 sq mi (2.6 sq km), SE Greece, in the Aegean Sea, smallest of the Cyclades. In Greek mythology, Leto gave birth to Apollo and Artemis on Delos; and the island was par...

John the Baptist, Saint

(Encyclopedia)John the Baptist, Saint, d. c.a.d. 28–a.d. 30, Jewish prophet, considered by Christians to be the forerunner of Jesus. He was the son of Zacharias and Elizabeth, who was also a kinswoman of Mary, th...