The new compound, with its three iodine atoms, is tri-iodothyronine, and is rather more active than thyroxine.    From Wordnik.com.  [The Human Brain]

Yet what is it that thyroxine, tri-iodothyronine, and possible related compounds do to bring about such changes?.    From Wordnik.com.  [The Human Brain]

Vitamin A insufficiency tri-iodothyronine effect cellular degree rat.    From Wordnik.com.  [MyLinkVault Newest Links] Reference

T3 (tri-iodothyronine) - serum 0.45 (L) ng/ml 0. 87-1.78 CLIA en Español.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference