(Encyclopedia) TinianTiniantĭnēănˈ, tēnēänˈ [key], island (2010 pop. 3,136), 39 sq mi (101 sq km), W Pacific, one of the Northern Mariana Islands. The island lies immediately SW of Saipan. The…
(Encyclopedia) bark or barquebarqueboth: bärk [key], sailing vessel with three masts, of which the mainmast and the foremast are square-rigged while the mizzenmast is fore-and-aft-rigged. Although…
(Encyclopedia) alfalfa caterpillar, larva of the alfalfa butterfly, Colias eurytheme, a member of the family Pieridae. Found throughout most of Mexico, the United States, and S Canada, it is…
(Encyclopedia) graph, figure that shows relationships between quantities. The graph of a function y=f (x) is the set of points with coordinates [x, f (x)] in the xy-plane, when x and y are numbers. A…
(Encyclopedia) polynomial, mathematical expression which is a finite sum, each term being a constant times a product of one or more variables raised to powers. With only one variable the general form…
(Encyclopedia) purification, in religion, the ceremonial removal of what the religion deems unclean. The usual agents of purification are water (as in baptism), bodily alteration (as in circumcision…
(Encyclopedia) Holstein-Friesian cattleHolstein-Friesian cattlehōlˈstēn-frēˈzhən, –stīn– [key], breed of dairy cattle originated in N Holland and Friesland. Commonly called Holsteins in the United…
(Encyclopedia) Jacobi, Carl Gustav JacobJacobi, Carl Gustav Jacobkärl g&oobreve;sˈtäf yäˈkôp yäkôˈbē [key], 1804–51, German mathematician. He was an outstanding teacher and was professor of…
(Encyclopedia) Keeler, James Edward, 1857–1900, American astronomer, b. La Salle, Ill. At the age of 21 he went on the Naval Observatory expedition to Colorado to observe the solar eclipse of July,…
(Encyclopedia) subtraction, fundamental operation of arithmetic; the inverse of addition. If a and b are real numbers (see number), then the number a−b is that number (called the difference) which…
