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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.
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noun
A thyroid hormone, with the chemical formula C15H11I4NO4, that regulates cell metabolism and growth.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Synonyms: tetraiodothyronine
Antonyms: none provided
noun
hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
Definition source: Princeton WordNet 3.0
Synonyms: thyroxin, tetraiodothyronine, T
Antonyms: none provided
Broader terms: thyroid hormone
History
Etymology tree Proto-Indo-European *dhwer-der. Proto-Hellenic *thurā Ancient Greek θῠ́ρᾱ (thŭ́rā) Ancient Greek -εος (-eos) Ancient Greek θῠρεός (thŭreós) Proto-Indo-European *weyd- Proto-Indo-European *-os Proto-Indo-European *wéydos Proto-Hellenic *wéidos Ancient Greek εἶδος (eîdos) Proto-Indo-European *-os Proto-Indo-European *-ēs Ancient Greek -ης (-ēs) Ancient Greek -ειδής (-eidḗs) Ancient Greek θῠρεοειδής (thŭreoeidḗs)bor. New Latin thyreoīdēsbor. English thyroid English thyr- English ox- Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ine English thyroxine From thyr- (“thyroid”) + ox- (“oxygen”) + -ine.
Across languages
9 source translations are retained for this English entry.
