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toxoplasmosis

(Encyclopedia)toxoplasmosis, infection caused by Toxoplasma gondii, a single-celled parasitic microorganism that can infect most warm-blooded animals but reproduces only in animals of the cat family, who shed the p...

Powell, Anthony

(Encyclopedia)Powell, Anthony pōˈəl [key], 1905–2000, English novelist, grad. Eton and Baillol College, Oxford. A distinguished writer of social comedy, he is best known for his 12-volume novel sequence collec...

Oliveros, Pauline

(Encyclopedia)Oliveros, Pauline, 1932–2016, American composer and musician, b. Houston, Tex., studied Univ. of Houston, San Francisco State College (B.A., 1957). She began playing the accordion as a child, and it...

enthalpy

(Encyclopedia)enthalpy ĕnˈthălpē [key], measure of the heat content of a chemical or physical system; it is a quantity derived from the heat and work relations studied in thermodynamics. As a system changes fro...

sulfuric acid

(Encyclopedia)sulfuric acid, chemical compound, H2SO4, colorless, odorless, extremely corrosive, oily liquid. It is sometimes called oil of vitriol. Although sulfuric acid is now one of the most widely used c...

Salt, Sir Titus

(Encyclopedia)Salt, Sir Titus, 1803–76, English textile manufacturer and inventor. He invented a machine for making worsted from coarse wool and a process for spinning and weaving alpaca. In 1851 he started to bu...

smelting

(Encyclopedia)smelting, in metallurgy, any process of melting or fusion, especially to extract a metal from its ore. Smelting processes vary in detail depending on the nature of the ore and the metal involved, but ...

distillation

(Encyclopedia)distillation, process used to separate the substances composing a mixture. It involves a change of state, as of liquid to gas, and subsequent condensation. The process was probably first used in the p...

water, desalination of

(Encyclopedia)water, desalination of, process of removing soluble salts from water to render it suitable for drinking, irrigation, or industrial uses. The principal methods used for desalination include distillatio...

thermosets

(Encyclopedia)thermosets, materials that can not be softened on heating. In thermosetting polymers, the polymer chains are joined (or cross-linked) by intermolecular bonding. Thermosets are usually supplied as part...