# transthyretin

> English word · Noun · IPA /tɹænsˈθaɪ.ɹət.ɪn/

## Definitions
1. a protein found in human blood serum and cerebrospinal fluid that functions as a carrier of the thyroid hormone thyroxine and the retinol-binding protein

## Etymology
From trans- (“denoting change or transfer”) + thyr(oxine) + ret(inol) + -in (“protein”).

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