thyroid
Word family nounthyroidectomythyroiditisadjectivethyroid
thy·roid /ˈθaɪrɔɪd/ (also thyroid gland) noun [countableC] Origin thyroid (1700-1800) Modern Latin thyroides, from Greek thyreoeides “shield-shaped”, from thyreos “shield shaped like a door”, from thyra “door”; from the shape of the cartilage at the front of the throat