What does "thyroxine" mean?

A thyroid hormone, with the chemical formula C₁₅H₁₁I₄NO₄, that regulates cell metabolism and growth.

What is a synonym for "thyroxine"?

Common synonyms include: tetraiodothyronine, t, tetraiodothyronine, thyroxin.

Pronounced //θaɪˈrɒk.siːn//.

//θaɪˈrɒk.siːn// noun

noun ·Rare ·Advanced level

Noun

1
A thyroid hormone, with the chemical formula C₁₅H₁₁I₄NO₄, that regulates cell metabolism and growth. countable, uncountable
2
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells wordnet

From thyr- (“thyroid”) + ox- (“oxygen”) + -ine.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.