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Hou·yhn·hnm | \ ˈhwi-nəm 
, hü-ˈi-nəm \
, hü-ˈi-nəm \Definition of Houyhnhnm
: a member of a race of horses endowed with reason in Swift's Gulliver's Travels
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Time Traveler for Houyhnhnm
The first known use of Houyhnhnm was in 1726
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