outer core

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English[edit]

Noun[edit]

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outer core (plural outer cores)

  1. Used other than as an idiom: see outer,‎ core.
  2. (planetology) The hot liquid material found near the centre of some planets, distinct from the solid inner core.
    1. (geology) The part of the Earth between the mantle and inner core, responsible for generating the planet's magnetic field.