Definition of Expansion. Meaning of Expansion. Synonyms of Expansion

Here you will find one or more explanations in English for the word Expansion. Also in the bottom left of the page several parts of wikipedia pages related to the word Expansion and, of course, Expansion synonyms and on the right images related to the word Expansion.

Definition of Expansion

Expansion
Expansion Ex*pan"sion, n. [L. expansio: cf. F. expansion.] 1. The act of expanding or spreading out; the condition of being expanded; dilation; enlargement. 2. That which is expanded; expanse; extend surface; as, the expansion of a sheet or of a lake; the expansion was formed of metal. The starred expansion of the skies. --Beattie. 3. Space through which anything is expanded; also, pure space. Lost in expansion, void and infinite. --Blackmore. 4. (Com.) Enlargement or extension of business transactions; esp., increase of the circulation of bank notes. 5. (Math.) The developed result of an indicated operation; as, the expansion of (a + b)^2 is a^2 + 2ab + b^2. 6. (Steam Engine) The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston. 7. (Nav. Arch.) The enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction. --Ham. Nav. Encyc. Note: Expansion is also used adjectively, as in expansion joint, expansion gear, etc. Expansion curve, a curve the co["o]rdinates of which show the relation between the pressure and volume of expanding gas or vapor; esp. (Steam engine), that part of an indicator diagram which shows the declining pressure of the steam as it expands in the cylinder. Expansion gear (Steam Engine). a cut-off gear. See Illust. of Link motion. Automatic expansion gear or cut-off, one that is regulated by the governor, and varies the supply of steam to the engine with the demand for power. Fixed expansion gear, or Fixed cut-off, one that always operates at the same fixed point of the stroke. Expansion joint, or Expansion coupling (Mech. & Engin.), a yielding joint or coupling for so uniting parts of a machine or structure that expansion, as by heat, is prevented from causing injurious strains; as by heat, is prevented from causing injurious strains; as: (a) A side or set of rollers, at the end of bridge truss, to support it but allow end play. (b) A telescopic joint in a steam pipe, to permit one part of the pipe to slide within the other. (c) A clamp for holding a locomotive frame to the boiler while allowing lengthwise motion. Expansion valve (Steam Engine), a cut-off valve, to shut off steam from the cylinder before the end of each stroke.

Meaning of Expansion from wikipedia

- Expansion may refer to: L'Expansion, a French monthly business magazine Expansion (album), by American jazz pianist Dave Burrell, released in 2004 Expansions...
- Thermal expansion is the tendency of matter to change its shape, area, volume, and density in response to a change in temperature, usually not including...
- The expansion of the universe is the increase in distance between any two given gravitationally unbound parts of the observable universe with time. It...
- In expansionism, states expand their territory through military empire-building or colonialism. In the classical age of conquest moral justification for...
- expansion into yet more stages to increase efficiency. The result is the multiple-expansion engine. Such engines use either three or four expansion stages...
- An expansion team is a new team in a sports league, usually from a city that has not hosted a team in that league before, formed with the intention of...
- An economic expansion is an increase in the level of economic activity, and of the goods and services available. It is a period of economic growth as...
- An expansion pack, expansion set, supplement, or simply expansion is an addition to an existing role-playing game, tabletop game, video game or collectible...
- An expansion tank or expansion vessel is a small tank used to protect closed (not open to atmospheric pressure) water heating systems and domestic hot...
- A multipole expansion is a mathematical series representing a function that depends on angles—usually the two angles used in the spherical coordinate...