Deinonychus Definition
 dī-nŏnĭ-kəs 
    noun
  
 A small carnivorous theropod dinosaur of the genus Deinonychus of the Cretaceous Period, characterized by sickle-shaped talons and powerful jaws.
 American Heritage 
    pronoun
  
 A taxonomic genus within the subfamily Velociraptorinae.
Wiktionary 
Origin of Deinonychus
-  New Latin Deinonychus genus name Greek deinos fearful, terrifying Greek onux, onukh- nail, claw nogh- in Indo-European roots From American Heritage Dictionary of the English Language, 5th Edition 
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