microthrombocytopeniaWiktionary 原文英美构词拆解micromicro-前缀thrombocytopeniathrombocytopenia词干micro-(diminutive) Very small. · (metric units) One millionth.词源说明From micro- + thrombocytopenia.释义名词noun1(medicine) A reduction in the number and size of platelets.