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upper mantle

noun — 2 senses

upper mantle

noun
1

Geography, Geology, Natural sciences The layer of Earth's interior located beneath the crust and extending to a depth of 410 kilometers.

  • Holonyms: mantle < Earth
  • Meronym: asthenosphere
2

Any similar layer of an exoplanet.

  • Holonyms: mantle < planet

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.