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histology
(Encyclopedia)histology hĭstŏlˈəjē [key], study of the groups of specialized cells called tissues that are found in most multicellular plants and animals. Histologists study the organization of tissues at all ...Oakland
(Encyclopedia)Oakland, city (1990 pop. 372,242), seat of Alameda co., W Calif., on the eastern side of San Francisco Bay; inc. 1852. Together with San Francisco and San Jose, the city comprises the fourth largest m...National Radio Astronomy Observatory
(Encyclopedia)National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy, founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc.,...spinal column
(Encyclopedia)spinal column, bony column forming the main structural support of the skeleton of humans and other vertebrates, also known as the vertebral column or backbone. It consists of segments known as vertebr...vortex
(Encyclopedia)vortex vôrˈtĕks [key], mass of fluid in whirling or rotary motion. To simplify the analysis, vortex motion usually describes motions in a frictionless fluid. In such cases the absence of friction w...Eriugena, John Scotus
(Encyclopedia)Eriugena or Erigena, John Scotus skōˈtəs ĕryo͞oˈjĭnə; ĕrĭjˈ– ĕrēˈ– [key] [Lat. Scotus=Irish, Eriugena=born in Ireland], c.810–c.877, scholastic philosopher, born in Ireland. About ...Aldus Manutius
(Encyclopedia)Aldus Manutius älˈdō mäno͞oˈtsyō [key], 1450–1515, Venetian printer. He was educated as a humanistic scholar and became tutor to several of the great ducal families. One of them, the Pio fami...geodesy
(Encyclopedia)geodesy jēŏdˈĭsē [key] or geodetic surveying, theory and practice of determining the position of points on the earth's surface and the dimensions of areas so large that the curvature of the earth...geyser
(Encyclopedia)geyser gīˈzər [key] [Icel.], hot spring from which water and steam are ejected periodically to heights ranging from a few to several hundred feet. Notable geysers are found in Iceland, New Zealand,...gamma radiation
(Encyclopedia)gamma radiation, high-energy photons emitted as one of the three types of radiation resulting from natural radioactivity. It is the most energetic form of electromagnetic radiation, with a very short ...Browse by Subject
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