# fiamma

> English word · Noun

## Definitions
1. A "flame structure" found in welded ignimbrite and tuff: a small, dark lens of glassy material (possibly pumice which was compressed or collapsed during welding).

## Etymology
Learned borrowing from Italian fiamma (“flame”).

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