pluton

Noun
  1. Large mass of intrusive igneous rock believed to have solidified deep within the earth (synset 114956441)
    is a type of: igneous rock - rock formed by the solidification of molten magma
    subtypes: granite - plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz
    same as: batholite, batholith, plutonic rock

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