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thy·rox·ine (thy·rox·in)
 thyroxine (thyroxin)
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- pronunciation:
- thaI
rak
sin
[or]
thaI
rak
sihn
| part of speech: |
noun |
| definition: |
the thyroid hormone that contains iodine and regulates metabolism, or a synthetic preparation of the same compound used to treat thyroid disorders.
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