Standard Lemma guide
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
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noun
The levorotatory isomer of thyroxine (trademark Levothyroid, Levoxyl, Synthroid) that is administered in the form of its sodium salt C15H10I4NNaO4 in the treatment of hypothyroidism.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: medicine, pharmacology, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Etymology tree Proto-Indo-European *leh2iwosder. Latin laevus English levo- 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 English levothyroxine From levo- + thyroxine.
Across languages
3 source translations are retained for this English entry.
