: characterized by normal thyroid function

Word History

First Known Use

1924, in the meaning defined above

Time Traveler
The first known use of euthyroid was in 1924

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Cite this Entry

“Euthyroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/euthyroid. Accessed 7 Jul. 2026.

Medical Definition

euthyroid

adjective
: characterized by normal thyroid function
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