Share this entry

Share this page

gastrula

Syllabification: gas·tru·la
Pronunciation: /ˈɡastrələ
 
/

Definition of gastrula in English:

noun (plural gastrulae /-ˌlē/)

Embryology
An embryo at the stage following the blastula, when it is a hollow cup-shaped structure having three layers of cells.
Example sentences
  • Using light microscopy, he concluded that the embryo underwent gastrulation and that the gastrula consisted of three ‘cell elements’ on the outside, and two on the inside.
  • During gastrulation, cells on the outside of the embryo move inwards and, in animals such as the sea urchin, gastrulation even transforms a hollow spherical blastula into a gastrula with a hole through the middle - the gut.
  • Gastrulation in its broadest sense is the reorganization of the cells of the blastula to form a multilayered embryo, the gastrula.

Origin

late 19th century: modern Latin, from Greek gastēr, gastr- 'stomach' + the Latin diminutive ending -ula.

Derivatives

gastrulation

1
Pronunciation: /ˌɡastrəˈlāSHən/
noun
Example sentences
  • I will focus here on experimental analyses of a morphogenetic process: the behavior of the amphibian dorsal marginal zone during gastrulation.
  • This is in accordance with other modern interpretations of gastrulation in the Porifera.
  • These are formed by mesenchyme cells that ingress during gastrulation, as in sea urchins.

Definition of gastrula in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day prepotent
Pronunciation: ˌprēˈpōtnt
adjective
greater than others in power or influence