# epithelium

> English word · Noun · IPA /ˌɛpɪˈθiːlɪəm/ · frequency rank #39,802

## Definitions
1. A membranous tissue composed of one or more layers of cells which forms the covering of most internal and external surfaces of the body and its organs: internally including the lining of vessels and other small cavities, and externally being the skin.

## Etymology
From New Latin epithēlium. By surface analysis, epi- + thel- + -ium.

## Easily confused with
- **epithelial** (https://plainspell.com/en/vs/epithelial-vs-epithelium)

## Common misspellings (14)
`eipthelium`, `epihtelium`, `epitehlium`, `epitheilum`, `epithelimu`, `epitheliumm`, `epithellium`, `epitheluim`, `epithhelium`, `epithleium`, `epitthelium`, `eppithelium`, `eptihelium`, `peithelium`

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