Get the FREE one-click dictionary software for Windows
or the iPhone/iPad and Android apps
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
    "Jellyfish are marine invertebrates"

Derived forms: invertebrates

Type of: animal, animate being

Antonym: vertebrate

Encyclopedia: Invertebrate