# hand boiler

> English word · Noun · IPA /ˈhænd ˈbɔɪlə/

## Definitions
1. A toy usually consisting of a glass sculpture made of two bulbs connected by a looped and twisted piece of tubing, which contains dyed ethanol inside that seemingly boils when gripped.

## Etymology
Compound of hand + boiler.

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