Dimetrodon meaning

dī-mĕtrə-dŏn
Any of various carnivorous pelycosaurs of the genus Dimetrodon of the Permian Period, having long spines on the back that supported a sail-like structure, and powerful jaws with sharp teeth.
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An extinct, carnivorous reptile of the genus Dimetrodon of the Permian Period having a body similar to an alligator's but with a tall, curved sail on its back. The sail had a thick network of blood vessels and may have been used to regulate the animal's body temperature. The dimetrodon belonged to the synapsids, an early group of reptiles that was ancestral to mammals.
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Origin of dimetrodon

  • New Latin Dimetrodōn genus name Greek di- two di–1 Greek metron measure mē-2 in Indo-European roots Greek odōn tooth (from its having two different kinds of teeth) dent- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition