# handwavium

> English word · Noun · IPA /handˈweɪ.vi.əm/

## Definitions
1. Any hypothetical but unobtainable material with desirable engineering properties.

## Etymology
From hand waving + -ium (“the chemical element suffix”).

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