# titin

> English word · Noun · IPA /ˈtaɪtɪn/

## Definitions
1. A protein important in the contraction of striated muscle tissues.

## Etymology
From titan + -in. From being a titanic (titan) protein (-in), a very large protein, the largest known prior to the discovery of PKZILLA.

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