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Adjective: invertebrate  in'vur-tu-brut
  1. (zoology) lacking a backbone or spinal column
    "worms are an example of invertebrate animals";
    - spineless
Noun: invertebrate  in'vur-tu-brut
  1. Any animal lacking a backbone or notochord; the term is not used as a scientific classification

Derived forms: invertebrates

Type of: animal, animate being, beast, brute, creature, fauna

Antonym: vertebrate

Encyclopedia: Invertebrate

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