gastrula

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gas·tru·la

 (găs′trə-lə)
n. pl. gas·tru·las or gas·tru·lae (-lē′)
An embryo at the stage following the blastula, after the movement of cells results in the formation of the three germ layers, ectoderm, mesoderm, and endoderm.

[New Latin : Greek gastēr, gastr-, belly + Latin -ula, feminine diminutive suff.]

gas′tru·lar (-lər) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

gastrula

(ˈɡæstrʊlə)
n, pl -las or -lae (-ˌliː)
(Biology) a saclike animal embryo consisting of three layers of cells (ectoderm, mesoderm, and endoderm) surrounding a central cavity (archenteron) with a small opening (blastopore) to the exterior. See also ectoderm, mesoderm, endoderm
[C19: New Latin: little stomach, from Greek gastēr belly]
ˈgastrular adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

gas•tru•la

(ˈgæs trʊ lə)

n., pl. -las, -lae (-ˌli)
an embryo in an early stage of development during which the blastula differentiates into two cell layers and the central cavity becomes the archenteron.
[1875–80]
gas′tru•lar, adj.
gas`tru•la′tion, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

gas·tru·la

(găs′trə-lə)
Plural gastrulas or gastrulae (găs′trə-lē′)
An embryo at the stage following the blastula, in which the cells are distributed into layers that eventually develop into the organs of the body. Compare blastula.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gastrula - double-walled stage of the embryo resulting from invagination of the blastulagastrula - double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
conceptus, fertilized egg, embryo - an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
archenteron - central cavity of the gastrula; becomes the intestinal or digestive cavity
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
gastrula

gas·tru·la

n. gástrula, etapa primitiva del desarrollo embriónico.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
A gastrular lip was also formed at the anterior end of the developing embryo (Fig.
The vegetal part of this gastrular epithelium invaginates to form the archenteron [ILLUSTRATION FOR FIGURE 5D OMITTED], while the animal part of the epithelium becomes thinner [ILLUSTRATION FOR FIGURE 5B AND E OMITTED].