Emily Dickinson Lexicon
Definition for HY-LE-O-SAUR'US
HY-LE-O-SAUR'US, n. [Gr. υλαιος, belonging to wood, and σαυρος, a lizard.]
An extinct animal, which blended the osteology of the crocodile with that of the lizard; found in the wealden formation, England. Mantell.
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