compactification

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noun
  1. 1

    (topology) Any of various procedures of enlarging a topological space to make it compact.

  2. 2

    (topology) The space resulting from any such procedure.

  3. 3

    (physics) Any modification of a theory such that an infinite parameter becomes finite.

  4. 4

    (physics) The reduction of the number of large spacetime dimensions of a physical theory by making some of them compact.