Noun

(-)

* {{quote-book, year=1814, author=William Brodie Gurney, title=The Trial of Charles Random de Berenger, Sir Thomas Cochrane,, chapter=, edition= citation

, passage=Gentlemen, the complete developement of this business, however, now approached. }}

* {{quote-book, year=1818, author=, title=Frankenstein or, the modern Prometheus, chapter=2, edition=1831 ed. citation

, passage="I distinctly discerned how peculiarly fortunate my lot was, and gratitude assisted the developement of filial love." }}

* {{quote-book, year=1871, author=, title=Home as Found, chapter=, edition= citation

, passage="Pray, Mr. Truck," inquired S.R.P., "is it commonly thought in the English literary circles, that Byron was a developement of Shakspeare, or Shakspeare a shadowing forth of Byron?" }}

Noun

The act or process of expanding.

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.

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

A product to be used with a previous product.

This expansion requires the original game board.

That which is expanded; expanse; extended surface.

* Beattie

the starred expansion of the skies

(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.