invertebrates

Phonetic Respelling: [ (in-vur-tuh-bruhts, in-vur-tuh-brayts) ]

Definition:

n. an animal without a backbone; not vertebrate

Sentence:

Most of the animals of Earth do not have backbones They are invertebrates.

More example sentences:

Most of the animals of Earth do not have backbones They are invertebrates.

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Amebocytes are found in many invertebrates like mollusks or sponges.

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About what percentage of all the animals of the world do invertebrates make up?

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Synonyms:

spineless;not vertebrate; without a backbone

Antonyms:

vertebrate; backbone