- a combining form representing thyroid in the formation of compound words: thyrotropin.
Also especially before a vowel, thyr-.
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before a vowel thyr-
- thyroidthyrotoxicosis; thyrotropin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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