# trondhjemite

> English word · Noun

## Definitions
1. A leucocratic intrusive igneous rock, a variety of tonalite in which the plagioclase is mostly in the form of oligoclase.

## Etymology
From Trondhjem + -ite.

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