# tropomyosin

> English word · Noun · IPA /ˌtɹəʊ.pəʊˈmʌɪ.əs.ɪn/

## Definitions
1. A protein involved in muscle contraction and related to myosin, and occurs together with troponin in the thin filaments of muscle tissue.

## Etymology
From Ancient Greek τρόπος (trópos, “turn”, noun) + myosin.

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