invertebrate

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invertebrate

 [in-ver´tĕ-brāt]
1. having no vertebral column.
2. any animal that has no vertebral column.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

in·ver·te·brate

(in-ver'tĕ-brāt),
1. Not possessed of a spinal or vertebral column.
2. Any animal that has no spinal column.
Farlex Partner Medical Dictionary © Farlex 2012

invertebrate

(ĭn-vûr′tə-brĭt, -brāt′)
adj.
1. Lacking a backbone or spinal column; not vertebrate.
2. Of or relating to invertebrates: invertebrate zoology.
n.
An animal, such as an insect or mollusk, that lacks a backbone or spinal column.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

in·ver·te·brate

(in-vĕr'tĕ-brăt)
1. Not possessed of a spinal or vertebral column.
2. (in-vĕr'tĕ-brāt) Any animal that has no spinal column.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

invertebrate

any animal that does not possess a backbone.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
The seasonal and spatial variations of macrobenthic invertebrates in Bayou Casotte, Bayou Heron, and Bayou Cumbest were examined to determine the relationship between physicochemical parameters and macrobenthic invertebrate abundance and density and to compare densities and diversities of macrobenthic invertebrates.
Egg size as a life history character of marine invertebrates: Is it all it's cracked up to be?
Along each transect, we randomly placed two 1-[m.sup.2] polyvinyl chloride quadrats and collected invertebrates by sweeping within the quadrat with a 500-[micro]m mesh dip net.
Researchers are now finding that some chemicals, especially pesticides, cause unexpected and unintentional harm to many invertebrate species that play essential roles in marine ecosystems and food webs, Verslycke said.
Of the 784 invertebrates, 13 were considered critically endangered, while six were listed as endangered.
In the logistic regression model, the marine invertebrates had the highest beta coefficient value (related to the effect of body size on extinction risk) and the lowest likelihood value compared to those found in tetrapods and fish (Table 2).
These finds also show the importance of monitoring invertebrates so people understand more about how these animals are changing in the wild.
We collected 588 vacuum samples for invertebrates within the 98 plots at three points per site each year during June and July, for a total of six samples over the 2 y.
The southern hemisphere planting supported a fifth fewer invertebrates than the native planting, the study found.
Invertebrate keepers are the first in the world to successfully breed the Montserrat tarantulas, marking a crucial step in discovering more about the mysterious species.
is pleased to announce the release of its inaugural publication, A Basic Glossary of Invertebrate Zoology by Dr.
The awesome world of invertebrates is being explored in Spineless, the new very colourful and family friendly exhibition at the Great North Museum: Hancock in Newcastle.