English

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Alternative forms

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Etymology

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From multi- +‎ decadal.

Adjective

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multidecadal (not comparable)

  1. Involving multiple decades
  2. Lasting or spanning multiple decades
    • 2014, W. Henry Lambright, Why Mars: NASA and the Politics of Space Exploration, →ISBN:
      But distributed big science in this case consists of missions (also called projects) that make up an extended, multidecadal program of exploration