# concavoconcave

> English word · Adjective

## Definitions
1. Concave or hollow on both sides.

## Etymology
From concave + -o- + concave.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/concavoconcave