a process that occurs during gastrulation in vertebrates, in which cells on one side of the blastula grow over and surround the remaining cells and yolk and eventually form the ectoderm
Derived forms
epibolic (ˌɛpɪˈbɒlɪk)
adjective
Word origin
C19: from Greek epibolē a laying on, from epiballein to throw on, from epi- + ballein to throw