apatosaurus
apa·to·sau·rus
noun
Origin
From Ancient Greek ἀπάτη (apátē, “trick, deception”) + -saurus, due to initial confusion over the analysis of the vertebral elements.
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.