Thyroxine Definition
 thī-rŏksēn, -sĭn 
    noun
  
 A colorless, crystalline compound, C15H11I4NO4, the active hormone of the thyroid gland, often prepared synthetically and used in treating goiter, cretinism, and myxedema.
 Webster's New World 
Synonyms: 
  
- tetraiodothyronine
- t
- thyroxin
Other Word Forms of Thyroxine
Noun
Singular:
 thyroxinePlural:
 thyroxinesOrigin of Thyroxine
- thyr(o)– ox(y)– in(dole) - From American Heritage Dictionary of the English Language, 5th Edition 
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