# tyrosine

> English word · Noun · frequency rank #34,733

## Definitions
1. A nonessential amino acid 2-amino-3-(4-hydroxyphenyl)propanoic acid found in most animal proteins, especially casein

## Etymology
From Ancient Greek τῡρός (tūrós, “cheese”) + -ine (since first discovered in cheese); surface analysis is approximately tyro- + -ine.

## Easily confused with
- **Tyrone** (https://plainspell.com/en/vs/tyrone-vs-tyrosine)

## Common misspellings (12)
`tryosine`, `ttyrosine`, `tyorsine`, `tyroisne`, `tyrosien`, `tyrosinne`, `tyrosnie`, `tyrossine`, `tyrrosine`, `tyrsoine`, `tyyrosine`, `ytrosine`

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