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 ?
The bilaterally symmetrical nervous system of the ophiopluteus first forms at the anterior end (apical organ) of the late gastrula stage embryo; and later it is associated with the ciliary band, oral epidermis, and digestive system of the larva (Cisternas and Byrne, 2003; Byrne et al., 2008; Hirokawa et al., 2008; Dupont et al., 2009; Gliznutsa and Dautov, 2011).
Thirteen carp tissues (heart, liver, kidney, hindbrain, spleen, foregut, hindgut, muscle, gill, eye, scale, fin and gonad) were collected from six 2-year-old healthy adults (three females and three males), and five critical periods of embryonic development (blastula, gastrula, neurula, tail-bud and hatching) were obtained from embryos.
Perlecan-LP is expressed at very low levels in the gastrula stage and remains expressed at low levels until late stages (spat and juvenile).
The embryological primordium for the ODT is the primitive gut tube, which is believed to arise from the definitive endoderm during the late gastrula stage.
Zinc transporter LIVI controls epithelial-mesenchymal transition in zebrafish gastrula organizer.
Stainier, "A common progenitor for haematopoietic and endothelial lineages in the zebrafish gastrula," Nature, vol.
Upon passage of eight hours, a gastrula was formed and its epiboly started to extend toward the vegetal pole (Fig.
Egg viability was measured at late gastrula stage (~12 h post-fertilization (hpf)) in a sample of ~260 embryos (Zaniboni-Filho, 1992; Rizzo et al., 2003).