# mucus

> English word · Noun · IPA /ˈmjuːkəs/ · frequency rank #23,915

## Definitions
1. A slippery secretion from the lining of the mucous membranes.
2. Short for vegetable mucus

## Etymology
Learned borrowing from Latin mūcus.
Partly displaced Old English slīm, whence modern slime.

## Easily confused with
- **mums** (https://plainspell.com/en/vs/mucus-vs-mums)
- **mules** (https://plainspell.com/en/vs/mucus-vs-mules)
- **muses** (https://plainspell.com/en/vs/mucus-vs-muses)
- **mumps** (https://plainspell.com/en/vs/mucus-vs-mumps)
- **MCU** (https://plainspell.com/en/vs/mcu-vs-mucus)
- **MCS** (https://plainspell.com/en/vs/mcs-vs-mucus)
- **much** (https://plainspell.com/en/vs/much-vs-mucus)
- **muck** (https://plainspell.com/en/vs/muck-vs-mucus)
- **macs** (https://plainspell.com/en/vs/macs-vs-mucus)
- **minus** (https://plainspell.com/en/vs/minus-vs-mucus)
- **macOS** (https://plainspell.com/en/vs/macos-vs-mucus)
- **modus** (https://plainspell.com/en/vs/modus-vs-mucus)
- **manus** (https://plainspell.com/en/vs/manus-vs-mucus)
- **magus** (https://plainspell.com/en/vs/magus-vs-mucus)
- **mucho** (https://plainspell.com/en/vs/mucho-vs-mucus)
- **Marcus** (https://plainspell.com/en/vs/marcus-vs-mucus)
- **mucous** (https://plainspell.com/en/vs/mucous-vs-mucus)
- **mucosa** (https://plainspell.com/en/vs/mucosa-vs-mucus)

## Common misspellings (7)
`mcuus`, `mmucus`, `muccus`, `mucsu`, `mucuss`, `muucs`, `umcus`

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