# pimpleback

> English word · Noun

## Definitions
1. Quadrula pustulosa, an American freshwater mussel.

## Etymology
From pimple + back.

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