# Torridonian

> English word · Proper noun · IPA /ˌtɔːɹiˈdəʊ.ni.ən/

## Definitions
1. A series of Mesoproterozoic to Neoproterozoic arenaceous and argillaceous sedimentary rocks which occur extensively in the Northwest Highlands of Scotland.

## Etymology
From an ellipsis of Torridon (Sandstone) (named after Loch Torridon, from Scottish Gaelic Loch Thoirbheartan) + -ian.

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