# iter

> English word · Noun · IPA /ˈaɪtə(ɹ)/ · frequency rank #58,118

## Definitions
1. A passage, especially the passage between the third and fourth ventricles in the brain; the cerebral aqueduct.

## Etymology
Borrowed from Latin iter (“passage”).

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