inner core

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English[edit]

Noun[edit]

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inner core (plural inner cores)

  1. Used other than as an idiom: see inner,‎ core.
  2. (planetology) The solid material found in the centre of some planets at extremely high temperature and pressure, distinct from the liquid outer core.
    1. (geology) The innermost part of the Earth, believed to be made of a nickel-iron alloy.

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