# plagioclase

> English word · Noun · IPA /ˈpleɪ.d͡ʒɪ.əˌkleɪz/ · frequency rank #88,715

## Definitions
1. Any of a group of aluminum silicate feldspathic minerals ranging in their ratio of calcium to sodium.

## Etymology
From plagio- + -clase, after German Plagioklas.

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