# longitudinal

> English word · Adjective · IPA /ˌlɒŋ.ɡɪˈtjuː.dɪ.nəl/ · frequency rank #17,890

## Definitions
1. Running across a set direction of an object.
2. Running across a set direction of an object.
3. Relating to the geographical longitude.
4. Of a study, sampling data over time rather than merely once.

## Etymology
From Middle English longitudinal, from Latin longitūdin-, oblique stem of longitūdō (“length, longitude”). By surface analysis, longitude + -in- + -al.

## Common misspellings (18)
`llongitudinal`, `lnogitudinal`, `lognitudinal`, `longgitudinal`, `longitduinal`, `longittudinal`, `longituddinal`, `longitudianl`, `longitudinall`, `longitudinla`, `longitudinnal`, `longitudnial`, `longituidnal`, `longiutdinal`, `longtiudinal`, `lonigtudinal`, `lonngitudinal`, `olngitudinal`

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