# tubulin

> English word · Noun · frequency rank #75,511

## Definitions
1. Any of a group of proteins used as the material for microtubules.
2. Specifically, the dimer of α-tubulin and β-tubulin.

## Etymology
From tubul- + -in.

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