# troy grain

> English word · Noun

## Definitions
1. A unit of mass, equal to 1/24 of a pennyweight or 1/480 of a troy ounce, fixed at 0.064 798 91 grams under the metric system.

## Etymology
Morphologically, from Troyes, town in Northern France + grain, unit of mass

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