proconcave

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adjective

In reference to ribs on shells, with the shape of a concave bend towards the aperture, but initially straight.

Scrabble 19
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Meanings

adjectiveproconcave (not comparable)
  1. not comparablebiologyIn reference to ribs on shells, with the shape of a concave bend towards the aperture, but initially straight.

Origin

From pro- + concave.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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