invertebrate

Noun · Adjective
US[in-vur-tuh-bruht]/ˌɪnˈvɝtəbrət/4 syllablesalso [in-vur-tuh-breyt] /ˌɪnˈvɝtəˌbreɪt/
Synonyms: spineless

Open English WordNet

Noun (1)

  1. any animal lacking a backbone or notochord; the term is not used as a scientific classificationType of animal, animate beingKinds worm, phoronid, Symbion pandora, rotifer, peanut worm, ctenophore, bryozoan, echinoderm, ectoproct, woodborer +7 moreParts foot, peristome

Adjective (1)

  1. lacking a backbone or spinal column“worms are an example of invertebrate animals”Synonyms: spinelessOpposite vertebrate
Word of the day · Oct 30About this word
mundaneadjective

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Webster's Dictionary (1913)

In·ver′te·brate adjective

Zoology Destitute of a backbone; having no vertebræ; of or pertaining to the Invertebrata. — noun One of the Invertebrata.

Age of invertebrates. See Age, and Silurian.

Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54

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