Meanings
nounouter mantle (plural outer mantles)
plural outer mantles
- Synonym of upper mantle.
Synonyms: upper mantle
Synonyms & antonyms
nounSynonym of upper mantle.
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Cite this entry
APA
outer mantle. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/outer%20mantle
MLA
“outer mantle.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/outer%20mantle. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “outer mantle,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/outer%20mantle.
Source: outer mantle on Wiktionary, CC BY-SA 4.0.