# subarachnoid

> English word · Adjective · IPA /ˌsʌb.əˈɹæk.nɔɪd/ · frequency rank #73,669

## Definitions
1. Located or occurring below the arachnoid mater, often specifically between the arachnoid membrane and the pia mater.

## Etymology
From sub- + arachnoid.

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