See also: IgM

English

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Noun

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IGM (plural IGMs)

  1. (astronomy) Abbreviation of InterGalactic Medium.
  2. (software) Initialism of in-game module.
    • 2016, Stephen Gose, Making Multiplayer Online Games, page 268:
      Blood PitTM — an “In-Game Module” (IGM) quest for the Adventures of RenownTM Gaming System.
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(intergalactic medium):

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