Noun:

1. a mass of undifferentiated cells from which an organ or body part develops

blastx基因研究的计算机程序blastn.爆炸；巨响；一阵(强风)；严厉的批评；<美俚>愉快的经历v.爆破；摧毁；发出巨响；用力撞击；批评Blastomeres分裂球blast shock爆炸冲击Blast seism爆破地震blast valve气阀blast cover火焰反射器blast gauge风压计blastocelic[医] 囊胚腔的blastoforms原细胞型blaster cap起爆雷管,雷管blast inlet鼓风进口,进风口

1. It seemed, therefore, that all scientists needed to do was figure out how to induce an amputated limb to form a blastema.
   因此科学家的目标，就是找出如何诱导断肢形成芽基的方法。
2. They found that salamander regeneration begins when a clump of cells called a blastema forms at the tip of a lost limb.
   他们发现，蝾螈再生是从一团被称为芽基的细胞在断肢顶端形成的时候开始的。