# reremouse

> English word · Noun

## Definitions
1. A bat (flying mammal).

## Etymology
From Middle English reremous, from Old English hrēremūs, hrœ̄remūs (“bat”). Related to rear (“to move, shake, stir”).

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