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Definition of expansion:

  1. Enlargement or extension of business transactions; esp., increase of the circulation of bank notes.
  2. Space through which anything is expanded; also, pure space.
  3. That which is expanded; expanse; extend surface; as, the expansion of a sheet or of a lake; the expansion was formed of metal.
  4. The act of expanding or spreading out; the condition of being expanded; dilation; enlargement.
  5. The developed result of an indicated operation; as, the expansion of ( a + b) 2 is a2 + 2ab + b2.
  6. The enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction.
  7. 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.

Synonyms:

elaboration, refinement, reach, extent, expanse, elaborateness, expanding upon, blowup, working out, enlargement, stretch, distance, spread, intricacy, sweep, place, space, involution.

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