Standard Lemma guide

tetraiodothyronine

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

Thyroxine: a hormone produced by the thyroid gland.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells

Definition source: Princeton WordNet 3.0

Examples

  • thyroxine is 65% iodine

Meaning relationships

Synonyms: thyroxine, thyroxin, T

Antonyms: none provided

Broader terms: thyroid hormone

History

Etymology

From tetra- + iodo- + thyronine.