backarc

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noun

The landward region of a volcanic chain, opposite the subduction zone.

Scrabble 17
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Meanings

nounbackarc (plural backarcs)

plural backarcs

  1. geographyThe landward region of a volcanic chain, opposite the subduction zone.

Origin

From back + arc.

Full word history & related roots →
Cite this entry
APA

backarc. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/backarc

MLA

“backarc.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/backarc. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “backarc,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/backarc.

Source: backarc on Wiktionary, CC BY-SA 4.0.