| 释义 |
ep·i·blast
\ˈepəˌblast\ noun
(-s)
Etymology: epi- + -blast
1. : the outer layer of the blastoderm : ectoderm — compare germ layer
2. : a small outgrowth shaped like a claw that lies in front of the plumule and opposite the scutellum in many grasses and has been considered to be a second cotyledon
• ep·i·blas·tic \|epə̇|blastik\ adjective |