# antithyroid

> English word · Adjective

## Definitions
1. Reducing the production or effects of thyroid hormones.

## Etymology
Coined in 1908 from anti- + thyroid.

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