eindexexotoxin./ek-soh-tok-sin/US // ˌɛk soʊˈtɒk sɪn //UK // (ˌɛksəʊˈtɒksɪn) //外毒素,外源性毒素,外激素,外源性毒物Definitionsn.noun · 名词1. Biochemistry.›a soluble toxin excreted by a microorganism.Level 5More words in e →