lower mantle

noun

The part of the Earth's mantle from 660 to 2890 km (410 to 1800 miles) below Earth's surface, between the transition zone and the outer core; it occupies about 56% of the total volume of the Earth.

“Holonyms: mantle < planet”

Similar
inner mantlemesosphere
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Meanings

nounlower mantle (plural lower mantles)

plural lower mantles

  1. The part of the Earth's mantle from 660 to 2890 km (410 to 1800 miles) below Earth's surface, between the transition zone and the outer core; it occupies about 56% of the total volume of the Earth.

    Holonyms: mantle < Earth, earth

    Synonyms: inner mantle, mesosphere

  2. Any similar layer in an exoplanet.

    Holonyms: mantle < planet

    Synonyms: inner mantle

Synonyms & antonyms

nounThe part of the Earth's mantle from 660 to 2890 km (410 to 1800 miles) below Earth's surface, between the transition zone and the outer core; it occupies about 56% of the total volume of the Earth.

Similar
inner mantlemesosphere

nounAny similar layer in an exoplanet.

Similar
inner mantle
Also see
inner mantle
Cite this entry
APA

lower mantle. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/lower%20mantle

MLA

“lower mantle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/lower%20mantle. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “lower mantle,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/lower%20mantle.

Source: lower mantle on Wiktionary, CC BY-SA 4.0.