epiboly

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e·pib·o·ly

 (ĭ-pĭb′ə-lē)
n.
The growth of a rapidly dividing group of cells around a more slowly dividing group of cells, as in the formation of a gastrula.

[Greek epibolē, a throwing or laying on, from epiballein, to throw on : epi-, epi- + ballein, to throw; see gwelə- in Indo-European roots.]

ep′i·bol′ic (ĕp′ə-bŏl′ĭk) adj.

epiboly

(ɪˈpɪbəlɪ)
n, pl -lies
(Zoology) embryol 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
[C19: from Greek epibolē a laying on, from epiballein to throw on, from epi- + ballein to throw]
epibolic adj

e•pib•o•ly

(ɪˈpɪb ə li)

n., pl. -lies.
the movement of a group of cells over a more slowly dividing group, resulting in an outer and inner layer, as in a gastrula.
[1870–75; < Greek epibolḗ the act of throwing or laying on, n. derivative of epibállein to throw upon, lay on = epi- epi- + bállein to throw]
ep•i•bol•ic (ˌɛp əˈbɒl ɪk) adj.

epiboly

the growth of part of an organism in such a way that it overlays or surrounds another. — epibolic, adj.
See also: Growth
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References in periodicals archive ?
13) Existia un foso, mas profundo de lo que se estaba dispuesto a admitir, entre el deseo, la epibole, y la realidad del dominio romano.
It is known as the Medusaegraptus epibole, after an unusually abundantly occurring dasyclad algal genus.