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pe·rip·a·tus | \ pə-ˈri-pə-təs 
\
\Definition of peripatus
: any of a class or phylum (Onychophora) of primitive tropical wormlike invertebrates that appear intermediate between annelid worms and arthropods
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Time Traveler for peripatus
The first known use of peripatus was circa 1931
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