词根词缀：blasto-, blast-, -blast, -blastic

【来源及含义】Greek: germ, bud; shoot, formative cell or layer; of or pertaining to an embryonic or germinal stage of development

【同源单词】blast, blastema, blastocarpous, blastocyst, blastocyte, blastoderm

词根词缀：diplo-, dipl-

【来源及含义】Greek: double [two-fold]

【同源单词】diplobacillus, diplobacteria, diplobacterium, diploblastic, diplocardia, diplocardiac