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English to English adjective
| 1 |
lacking a backbone or spinal column |  | Example: worms are an example of invertebrate animals
source: wordnet30
| 2 |
Destitute of a backbone; having no vertebræ; of or pertaining to the Invertebrata. |  | source: webster1913 noun
| 3 |
any animal lacking a backbone or notochord; the term is not used as a scientific classification |  | source: wordnet30
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