# insulin

> English word · Noun · IPA /ˈɪnsjʊlin/ · frequency rank #9,485

## Definitions
1. A polypeptide hormone that regulates carbohydrate metabolism (in various animals including humans).
2. Any exogenous preparation of this hormone for use as a medication.
3. Any exogenous preparation of this hormone or its analogues for use as a medication.

## Etymology
From Latin īnsula (“island”) (named for the islets of Langerhans, where insulin is produced) + -in.

## Easily confused with
- **insult** (https://plainspell.com/en/vs/insulin-vs-insult)
- **insults** (https://plainspell.com/en/vs/insulin-vs-insults)
- **insulting** (https://plainspell.com/en/vs/insulin-vs-insulting)
- **insular** (https://plainspell.com/en/vs/insular-vs-insulin)

## Common misspellings (10)
`innsulin`, `insluin`, `inssulin`, `insuiln`, `insulinn`, `insullin`, `insulni`, `inuslin`, `isnulin`, `nisulin`

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