Meaning of expansion in English | Powered by Free Dictionary API

noun

• The act or process of expanding.

  Example: The expansion of metals and plastics in response to heat is well understood.

• The fractional change in unit length per unit length per unit temperature change.

• A new addition.

  Example: My new office is in the expansion behind the main building.

• A product to be used with a previous product.

  Example: This expansion requires the original game board.

• That which is expanded; expanse; extended surface.

• (steam engines) 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.