# thyroid

> English word · Adjective · IPA /ˈθaɪ.ɹɔɪd/ · frequency rank #14,440

## Definitions
1. Of, relating to, or being the thyroid cartilage.
2. Of, relating to, or being the thyroid gland.
3. Of, relating to, or being the thyroid gland.
4. Shield-shaped; peltiform.

## Etymology
Borrowed from New Latin thyreoīdēs, from Ancient Greek θῠρεοειδής (thŭreoeidḗs, “shield-shaped”), from θῠρεός (thŭreós, “an oblong shield”) + -ειδής (-eidḗs, “-form, -like”).

## Common misspellings (11)
`htyroid`, `thhyroid`, `thryoid`, `thyorid`, `thyriod`, `thyrodi`, `thyroidd`, `thyrroid`, `thyyroid`, `tthyroid`, `tyhroid`

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