| 释义 |
para·blast
\ˈparəˌblast\ noun
Etymology: para- (I) + -blast
1. : the yolk of a meroblastic ovum
2. : mesoblast; especially : the part of the mesoblast giving rise to vascular structures
3. : blastomeres that give rise to extraembryonic membranes
• para·blas·tic \|parə|blastik\ adjective |