diiodotyrosineWiktionary 原文英美构词拆解didi-前缀iodoiodo-前缀tyrosinetyrosine词干di-Two. · Double, twice the quantity.iodo-(organic chemistry) Containing iodine.词源说明From di- + iodo- + tyrosine.释义名词noun1(organic chemistry) A precursor of thyroid hormone, resulting from iodization of monoiodotyrosine at the other meta- position on the phenol ring. It a modulator of thyroid peroxidase.