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Any of various microscopic marine and freshwater aquatic animals of the phylum Gastrotricha, having a long thin ciliated body.

[From New Latin Gastrotricha, phylum name : gastro- + Greek -trikhos, -trichous.]
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.


(Animals) any minute aquatic multicellular animal of the phylum Gastrotricha, having a wormlike body covered with cilia and bristles
[from New Latin gastrotricha, from gastro- + Greek -trichos -haired: see tricho-]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈgæs trə trɪk)

any tiny aquatic animal of the phylum Gastrotricha, having a long, sometimes bottle-shaped body, with cilia on the underside.
[1935–40; < New Latin Gastrotricha < Greek gastro- gastro- + -tricha, neuter pl. of -trichos -haired, adj. derivative of thríx hair]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Kochi 0 0 0 Arthungal 366 996 0 Sakthi 0 0 0 Veli 0 0 0 Sakthi: Sakthikulangara; Nem: nematode; Poly: polychaete; Oligo: oligochaete; Turb: turbellarian; Hrpc: harpacticoid copepod; Gastro: gastrotrich; Kinor: Kinorhyncha; Isop: isopod; Cnid: cnidarian.
Survival, culturing, adaptation and metal resistance of various rotifers and a gastrotrich (Minor phyla) isolated from heavily polluted industrial effluents.
5 0.0001 0.1475 0.3118 nonlinear Euglena 2 0.0378 0.0378 -0.6601 decrease Gastrotrich 2 0.1658 0.1658 -0.4746 no pattern Halteria 3 0.0533 0.0337 0.5692 increase Heliozoa sp.
To arrive at a better understanding of gastrotrich systematics and phylogeny, we performed the first cladistic analysis of nearly all known gastrotrich genera using 71 morphological characters.
Cosmopolitan complexes of cryptic species have been already shown for several species of meiofaunal metazoans without larvae such as nemerteans (Leasi, Andrade, & Norenburg, 2016), gastrotrichs (Leasi & Todaro, 2009), nemertodermatids (Meyer-Wachsmuth, Curini-Galletti, & Jondelius, 2014) and annelids such as Hesionides gohari (Westheide, 1974; Schmidt & Westheide, 1999), Microphthalmus listensis (Westheide & Rieger, 1987), Nerilla antennata, (Goodrich, 1912; Schmidt & Westheide, 1997/98), and Petitia amphophtalma (Westheide & Hass-Cordes, 2001; Westheide & Schmidt, 2003).
The rest of taxa: nauplii larvae, gastrotrichs, kinorhynchs, polychaetes, oligochaetes and cumaceans exhibited low relative abundances (below 1%) and scarce taxonomic representation.
Protists, nematodes, rotifers, small crustaceans, tardigrades, gastrotrichs, turbellarians, oligochaetes, and insect larvae are regularly found from psammon habitats (Thane-Fenchel, 1968; Whitman and Clark, 1984; Schmid-Araya, 1998, Kotwicki et al., 2005a, 2005b).
Molecular phylogenies sometimes recover other groups such as rotifers and gastrotrichs nested within the core lophotrochozoans (e.g., Passamaneck and Halanych, 2006), although these groups sometimes fall outside, as sisters to the core group taxa (e.g., Paps et al, 2009).