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(ich-thy-o-saur-us) 5 syllables

Definition

noun. a large marine reptile that lived in the Mesozoic era.

Example Sentence

The ichthyosaurus fossil was found inside the glacier.

More Example Sentences

The ichthyosaurus swam in ancient oceans.

Synonyms

marine reptile; prehistoric creature; fossil

Antonyms

modern

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ichthyosaurus
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