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ultraviolet radiation
(Encyclopedia) ultraviolet radiation, invisible electromagnetic radiation between visible violet light and X rays; it ranges in wavelength from about 400 to 4 nanometers and in frequency from about…conjunctivitis
(Encyclopedia) conjunctivitisconjunctivitiskənjəngtəvīˈtəs [key], inflammation or infection of the mucosal membrane that covers the eyeball and lines the eyelid, usually acute, caused by a virus or,…Compton effect
(Encyclopedia) Compton effect [for A. H. Compton], increase in the wavelengths of X rays and gamma rays when they collide with and are scattered from loosely bound electrons in matter. This effect…anaphylaxis
(Encyclopedia) anaphylaxisanaphylaxisănˌəfəlăkˈsĭs [key], hypersensitive state that may develop after introduction of a foreign protein or other antigen into the body tissues. When an anaphylactic…Chatterjee, Bankim Chandra
(Encyclopedia) Chatterjee, Bankim ChandraChatterjee, Bankim Chandrabəngˈkĭm chŭnˈdrə chäˈtərjē [key], 1838–94, Indian nationalist writer, b. Bengal. He popularized a Bengali prose style that became…Chrysophyta
(Encyclopedia) ChrysophytaChrysophytakrəsŏfˈətə [key], phylum (division) of unicellular marine or freshwater organisms of the kingdom Protista consisting of the diatoms (class Bacillariophyceae), the…dielectric
(Encyclopedia) dielectricdielectricdīˌĭlĕkˈtrĭk [key], material that does not conduct electricity readily, i.e., an insulator (see insulation). A good dielectric should also have other properties: It…Kukai
(Encyclopedia) Kukai or Kobo-DaishiKobo-Daishik&oomacr;ˈkī, kōˈbō-dīˈshē [key], 774–835, Japanese priest, scholar, and artist, founder of the Shingon or “True Word” sect of Buddhism. Of…Laurens, Henry
(Encyclopedia) Laurens, HenryLaurens, Henrylôrˈənz, lärˈ– [key], 1724–92, political leader in the American Revolution, b. Charleston, S.C. A wealthy merchant and planter, he was, in the years…epinephrine
(Encyclopedia) epinephrineepinephrineĕpˌənĕfˈrīn [key], hormone important to the body's metabolism, also known as adrenaline. Epinephrine, a catecholamine, together with norepinephrine, is secreted…Trending
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