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invertebrate

Pronunciation: /ɪnˈvəːtɪbrət/
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Definition of invertebrate

noun

  • an animal lacking a backbone, such as an arthropod, mollusc, annelid, coelenterate, etc. The invertebrates constitute an artificial division of the animal kingdom, comprising 95 per cent of animal species and about thirty different phyla. Compare with vertebrate.

adjective

  • denoting an invertebrate or relating to the invertebrates as a group.

Origin:

early 19th century (as a noun): from modern Latin invertebrata (plural) 'the invertebrates' (former taxonomic group), from French invertébrés, from in- 'without' + Latin vertebra (see vertebra)

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invertebrate in other Oxford dictionaries

Definition of invertebrate in the US English dictionary
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