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1. Oxford American Dictionary

   thyroxine

   • IPA[THīˈräksən]

   美式

   • n.
     the main hormone produced by the thyroid gland, acting to increase metabolic rate and so regulating growth and development.

   • noun: thyroxine

2. • 更多解釋

   thyroxine

   • IPA[θʌɪˈrɒksiːn]

   英式

   • n.
     the main hormone produced by the thyroid gland, acting to increase metabolic rate and so ...

   Oxford Dictionary