invertebrate Meaning, Definition & Usage
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noun any animal lacking a backbone or notochord; the term is not used as a scientific classification
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adjective lacking a backbone or spinal column
spineless.
- worms are an example of invertebrate animals
WordNet
In*ver"te*brate adjective
Definitions
(Zoöl.) Destitute of a backbone; having no vertebræ; of or pertaining to the Invertebrata. --n. One of the Invertebrata.
