# pistonphone

> English word · Noun

## Definitions
1. An acoustic calibrator based on a piston pushing on a fixed volume of air.

## Etymology
From piston + -phone.

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