Definition of "thyronine" []

• A phenolic amino acid that occurs naturally only in the iodinated form of thyroxine (noun)

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• "OH NH.CHCOOH TYHOSINE NH. CHCOOH THYBOXINE The most unusual point about the structure of the thyroxine molecule is the fact that it contains four iodine atoms, symbolized in the formula above by I. (If the four iodine atoms were removed, what would be left of the molecule would be named thyronine.)"
• "As a substance it contains synthetically manufactured liothyronine sodium which resembles the natural thyroid hormone tricodide-thyronine (L-T3)."