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printed circuit

(Encyclopedia)printed circuit, electric circuit in which the conducting paths connecting circuit components are affixed to a flat, insulating base board. The base is typically of plastic, glass, ceramic, or some ot...

numeration

(Encyclopedia)numeration, in mathematics, process of designating numbers according to any particular system; the number designations are in turn called numerals. In any place value system of numeration, a base numb...

parallelogram

(Encyclopedia)parallelogram, closed plane figure bounded by four line segments, or sides, with opposite pairs of sides parallel and equal in length. The rhombus, rectangle, and square are special types of parallelo...

Dhekelia

(Encyclopedia)Dhekelia thĕkälˈyä [key], Dhekelia Sovereign Base Area, or Eastern Sovereign Base Area, British military base (2004 est. pop. 7,200), c.51 sq mi (131 sq km), SE Cyprus, on Larnaca Bay; an overseas...

Quantico

(Encyclopedia)Quantico, town, (2000 pop. 561), Prince William Co., NE Va., on the Potomac River, 29 mi (47 km) SSW of Washington, D.C.; inc. 1927, reinc. 1934. It is now the site of the FBI training academy, and is...

Moreno Valley

(Encyclopedia)Moreno Valley mərēˈnō [key], city (1990 pop. 118,779), Riverside co., S Calif., inc. 1984. In 1990, Moreno Valley was California's fastest-growing city, with a population increase of more than 300...

degree-day

(Encyclopedia)degree-day, a unit of measure used to estimate the fuel and power requirements in heating and cooling a building; it is equal to a difference of 1 degree between the outdoor daily average temperature ...

cone, in mathematics

(Encyclopedia)CE5 Cone cone or conical surface, in mathematics, surface generated by a moving line (the generator) that passes through a given fixed point (the vertex) and continually intersects a given fixed c...

Diego Garcia

(Encyclopedia)Diego Garcia, coral island, 11 sq mi (28 sq km). Indian Ocean, largest island of the Chagos Archipelago, SW of Sri Lanka. Part of the British Indian Ocean Territory, the island was leased (1970) to th...

Akrotiri

(Encyclopedia)Akrotiri āˌkrōtēˈrē [key], Akrotiri Sovereign Base Area, or Western Sovereign Base Area, British air force base (2004 est. pop. 6,300), 47 sq mi (123 sq km), located on a peninsula on the SW Cyp...