pelycosaur
pe·ly·co·saur
noun
Origin
Ancient Greek πέλυξ (pélux, “bowl, axe”) and σαῦρος (saûros, “lizard”).
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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.