phos.pho.di.es.ter.asen.（名词）Any of a class of enzymes that catalyze the cleaving of phosphodiester bonds, such as those between nucleotides in nucleic acids, to produce smaller nucleotide units.磷酸二酯酶：一种可以催化磷酸二酯键分裂产生更小核酸单位的酶，如核酸中核苷酸间的酶
