invertebrate
noun/ɪnˈvɜːtɪbrət/
/ɪnˈvɜːrtɪbrət/
(specialist)- any animal with no backbone, for example a worm compare vertebrateTopics Insects, worms, etc.c2Word Originearly 19th cent. (as a noun): from modern Latin invertebrata (plural) ‘the invertebrates’ (former taxonomic group), from French invertébrés, from in- ‘without’ + Latin vertebra (from vertere ‘to turn’).
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invertebrate