# math grenade

> English word · Noun

## Definitions
1. The Curta, a cylindrical hand-held mechanical calculator invented in the 1930s.

## Etymology
From its resemblance to a grenade, the weapon.

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