trh

from WordNet (r) 3.0 (2006)
TRH
    n 1: hormone released by the hypothalamus that controls the
         release of thyroid-stimulating hormone from the anterior
         pituitary [syn: {thyrotropin-releasing hormone}, {TRH},
         {thyrotropin-releasing factor}, {TRF}, {protirelin}]
    

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