thyronine thyromegaly • thyroparathyroidectomize · · · Info · Definitions · Characters · · thyronine · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) a phenolic amino acid of which thyroxine is a derivative. · · Noun Definition 1 Characters · · e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079