in vertebrate

invertebrate

[in-vur-tuh-brit, -breyt]
adjective
1.
Zoology.
a.
not vertebrate; without a backbone.
b.
of or pertaining to creatures without a backbone.
2.
without strength of character.
noun
3.
an invertebrate animal.
4.
a person who lacks strength of character.

Origin:
1820–30; < Neo-Latin invertebrātus. See in-3, vertebrate

invertebracy [in-vur-tuh-bruh-see] , invertebrateness, noun
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World English Dictionary
invertebrate (ɪnˈvɜːtɪbrɪt, -ˌbreɪt)
 
n
1.  any animal lacking a backbone, including all species not classified as vertebrates
 
adj
2.  of, relating to, or designating invertebrates

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Etymonline
Word Origin & History

invertebrate
1826, coined from L. in- "not" + vertebra "joint." Invertebrata as a biological classification was coined 1805 by Fr. naturalist Georges Léopole Chrétien Frédéric Dagobert, Baron Cuvier (1769-1832).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

invertebrate in·ver·te·brate (ĭn-vûr'tə-brĭt, -brāt')
adj.

  1. Lacking a backbone or spinal column; not vertebrate.

  2. Of or relating to invertebrates.

n.
An animal, such as an insect or a mollusk, that lacks a backbone or spinal column.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
invertebrate   (ĭn-vûr'tə-brĭt, -brāt')  Pronunciation Key 
Adjective   Having no backbone or spinal column.

Noun   An animal that has no backbone or spinal column and therefore does not belong to the subphylum Vertebrata of the phylum Chordata. Most animals are invertebrates. Corals, insects, worms, jellyfish, starfish, and snails are invertebrates.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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