expansion

Noun
  1. The act of increasing (something) in size or volume or quantity or scope (synset 100366535)
  2. A function expressed as a sum or product of terms (synset 113806578)
    "the expansion of (a+b)^2 is a^2 + 2ab + b^2"
  3. A discussion that provides additional information (synset 107187407)
  4. Adding information or detail (synset 100372122)

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