(Encyclopedia) dialysisdialysisdīălˈĭsĭs [key], in chemistry, transfer of solute (dissolved solids) across a semipermeable membrane. Strictly speaking, dialysis refers only to the transfer of the…
(Encyclopedia) covenantcovenantkŭvˈənənt [key], agreement entered into voluntarily by two or more parties to do or refrain from doing certain acts. In the Bible and in theology the covenant is the…
(Encyclopedia) spring, in geology, natural flow of water from the ground or from rocks, representing an outlet for the water that has accumulated in permeable rock strata underground. Some of the…
(Encyclopedia) embryo screening, procedure (see genetic testing) in which a single cell is removed from an embryo two or three days after it has been conceived through in vitro fertilization and…
(Encyclopedia) etching, the art of engraving with acid on metal; also the print taken from the metal plate so engraved. In hard-ground etching the plate, usually of copper or zinc, is given a thin…
(Encyclopedia) license, in public law, permission by legal authority to engage in certain acts and also the document showing such permission. Some licenses are required for the protection of the…
(Encyclopedia) nosebleed, nasal hemorrhage occurring as the result of local injury or disturbance. Most nosebleeds are not serious and occur when one of the small veins of the septum (the partition…
(Encyclopedia) Allais, Maurice Félix CharlesAllais, Maurice Félix Charlesmôrēsˈ shärl älĕˈ [key], 1911–2010, French economist, Ph.D. Univ. of Paris, 1949. After working in the French mine…
(Encyclopedia) Bodleian LibraryBodleian Librarybŏdˈlēən, bŏdlēˈən [key], at the Univ. of Oxford. The original library, destroyed in the reign of Edward VI, was replaced in 1602, chiefly through the…
(Encyclopedia) Boehme or Böhme, JakobBoehme or Böhme, Jakobbēˈmə, Ger. yäˈkôp böˈmə [key], 1575–1624, German religious mystic, a cobbler of Görlitz, in England also called Behmen. He was a student of…
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