Webster's Online Dictionary
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Definition: HYLAEOSAUR

Part of Speech Definition
Noun 1. An alternative spelling for "Hylaeosaurus": A large Wealden dinosaur from the Tilgate Forest, England. It was about twenty feet long, protected by bony plates in the skin, and armed with spines.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Date "Hylaeosaur" was first used in popular English literature: sometime before 1914. (references)

Definition: HYLAEOSAUR

Part of SpeechDefinition
Noun1. An alternative spelling for "Hylaeosaurus": A large Wealden dinosaur from the Tilgate Forest, England. It was about twenty feet long, protected by bony plates in the skin, and armed with spines.[Websters].

Source: Webster's Revised Unabridged Dictionary (1913)

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Date "HYLAEOSAUR" was first used in popular English literature: sometime before 1914. (references)