# ferritin

> English word · Noun · frequency rank #87,280

## Definitions
1. Any of a family of iron-carrying globular protein complexes consisting of 24 protein subunits; the key protein of intracellular iron storage.

## Etymology
From Latin ferrātus (“iron-bearing”) and -in; compare also ferri- and ferro-.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/ferritin