Expansional

[ik-span-shuh n] /ɪkˈspæn ʃən/

noun
1.
the act or process of expanding.
2.
the state or quality of being expanded.
3.
the amount or degree of expanding.
4.
an expanded, dilated, or enlarged portion or form of a thing:
The present article is an expansion of one he wrote last year.
5.
anything spread out; expanse.
6.
Mathematics.

7.
Machinery. that part of the operation of an engine in which the volume of the working medium increases and its pressure decreases.
8.
an increase in economic and industrial activity (opposed to ).
9.
additional content for a video game, card game, board game, etc., that significantly expands or alters the way the game is played: I really improved my deck with cards from the latest expansion.
You can play the stand-alone expansion without ever buying the original game.
/ɪkˈspænʃən/
noun
1.
the act of expanding or the state of being expanded
2.
something expanded; an expanded surface or part
3.
the degree, extent, or amount by which something expands
4.
an increase, enlargement, or development, esp in the activities of a company
5.
(maths)

6.
the part of an engine cycle in which the working fluid does useful work by increasing in volume
7.
the increase in the dimensions of a body or substance when subjected to an increase in temperature, internal pressure, etc
n.

1610s, “anything spread out;” 1640s, “act of expanding,” from French expansion, from Late Latin expansionem (nominative expansio) “a spreading out,” noun of action from past participle stem of Latin expandere (see expand).

expansion ex·pan·sion (ĭk-spān’shən)
n.

expansion
(ĭk-spān’shən)