# bat nut

> English word · Noun

## Definitions
1. A nut of water caltrop (Trapa bicornis) or a plant of the species.

## Etymology
From the resemblance in shape to a bat (flying mammal).

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