Look up: gastrulation

1. gastrulation
   [n] - the process in which a gastrula develops from a blastula by the inward migration of cells
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. gastrulation
   During embryonic development of most animals a complex and coordinated series of cellular movements occurs at the end of cleavage. The details of these movements, gastrulation, vary from species to species, but usually result in the formation of the three primary germ layers, ectoderm, mesoderm and endoderm.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
3. Gastrulation
   Gas`tru·la'tion (găs`tru*lā'shŭn) noun (Biol.) The process of invagination, in embryonic development, by which a gastrula is formed.
   Found on http://www.encyclo.co.uk/webster/G/13
   
   
4. gastrulation
   <embryology> During embryonic development of most animals a complex and co-ordinated series of cellular movements occurs at the end of cleavage. The details of these movements, gastrulation, vary from species to species, but usually result in the formation of the three primary germ layers, ect...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
5. gastrulation
   (gas″troo-la´shәn) the process by which a blastula becomes a gastrula or, in forms without a true blastula, the process by which three germ cell layers are acquired. In humans, it denotes the conversion of the bilaminar embryonic disc into a trilaminar embryonic disc as cells migrate through the primitive st...
   Found on http://www.encyclo.co.uk/local/21001
   
   
6. Gastrulation
   • (n.) The process of invagination, in embryonic development, by which a gastrula is formed.
   Found on http://thinkexist.com/dictionary/meaning
   
   
7. gastrulation
   (from the article `development`) After several divisions, the animal embryo forms a hollow ball called a blastula, which differentiates into three types of cells (ectoderm, mesoderm, ... ...be seen microscopically or by any other available means of analysis. The most dramatic and influential example of this was provided by studies on .....
   Found on http://www.britannica.com/eb/a-z/g/12
   
   
8. Gastrulation
   In embryology, gastrulation is the term used to describe the process in which a gastrula is formed from a blastula by the inward migration of cells.
   Found on http://www.probertencyclopaedia.com/brow
   
   
9. gastrulation
   Type: Term Pronunciation: gas′trū-lā′shŭn Definitions: 1. Transformation of the blastula or blastocyst into the gastrula; the development and invagination of the embryonic germ layers. In human embryos, gastrulation is the process by which the bilaminar embryonic disk is converted into a trilaminar embryonic disk. &...
   Found on http://www.medilexicon.com/medicaldictio
   
   
10. Gastrulation
    to a (2) gastrula. Some of the ectoderm cells (orange) move inward forming the endoderm (red). `Gastrulation` is a phase early in the embryonic development of most animals, during which the single-layered blastula is reorganized into a trilaminar ("three-layered") structure known as the `g...
    Found on http://en.wikipedia.org/wiki/Gastrulatio