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zinc oxide

(Encyclopedia)zinc oxide, chemical compound, ZnO, that is nearly insoluble in water but soluble in acids or alkalies. It occurs as white hexagonal crystals or a white powder commonly known as zinc white. Zinc white...

zinnia

(Encyclopedia)zinnia, any species of the genus Zinnia of the family Asteraceae (aster family), native chiefly to Mexico, though some range as far north as Colorado and as far south as Guatemala. The common zinnia o...

shellac

(Encyclopedia)shellac, solution of lac in alcohol or acetone. In commerce the name is applied to the resinous substance (lac) itself rather than to the solution. It ranges in color from orange to light yellow depen...

actinomycosis

(Encyclopedia)actinomycosis ăkˌtənōmīkōˈsĭs [key], chronic suppurative infection that occurs around the face and neck. The disease is characterized by the formation of abscesses, or pus-filled cavities, bel...

sego lily

(Encyclopedia)sego lily sēˈgō [key], ornamental plant (Calochortus nuttallii) of the family Liliaceae (lily family), also known in parts of the West as mariposa lily. It is native to the region W of the Rocky Mt...

serval

(Encyclopedia)serval, medium-sized African cat, Leptailurus serval, found S of the Sahara in scrub country close to water. The serval is lightly built with very long legs; it has a small head with large eyes and ea...

Spinone Italiano

(Encyclopedia)Spinone Italiano spĭnōˈnē ĭtălēäˈnō, Ital. spēnôˈnā ētälyäˈnō [key], also called Italian pointer, breed of large, all-purpose hunting dog developed in the Piedmont district of NW It...

Rey, H. A.

(Encyclopedia)Rey, H. A., 1898–1977, German-American writer and illustrator of children's books, b. Hamburg as Hans Augusto Reyersbach. He and his wife, Margret Rey, 1906–1996, b. Hamburg as Margarete Elisabeth...

Rinehart, Mary Roberts

(Encyclopedia)Rinehart, Mary Roberts rīnˈhärt [key], 1876–1958, American novelist, b. Pittsburgh. A graduate nurse, she married Dr. Stanley M. Rinehart in 1896. The first of her many mystery stories, The Circu...

tick

(Encyclopedia)tick, small, parasitic arachnid of the order Ixodida, closely related to the mites. Ticks, which are larger than the often microscopic mites, are all parasitic in at least one developmental stage; mos...