Expansion

The act of expanding or spreading out; the condition of being expanded; dilation; enlargement.

That which is expanded; expanse; extend surface; as, the expansion of a sheet or of a lake; the expansion was formed of metal.

Space through which anything is expanded; also, pure space.

Enlargement or extension of business transactions; esp., increase of the circulation of bank notes.

The developed result of an indicated operation; as, the expansion of (a + b)2 is a2 + 2ab + b2.

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.

The enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction.

a discussion that provides additional information

a function expressed as a sum or product of terms; "the expansion of (a+b)^2 is a^2 + 2ab + b^2"