Definition of gastrula in English:

Share this entry

gastrula

Pronunciation: /ˈɡastrʊlə/

noun (plural gastrulae /ˈɡastrʊliː/)

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.

Derivatives

gastrulation

Pronunciation: /ˌɡastrəˈleɪʃ(ə)n/
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.

Origin

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

For editors and proofreaders

Line breaks: gas|trula

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.