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urohyal

From The Collaborative International Dictionary of English v.0.48:

Urohyal \U`ro*hy"al\, a. [2d uro- + the Gr. letter [Upsilon].]
   (Anat.)
   Of or pertaining to one or more median and posterior elements
   in the hyoidean arch of fishes. -- n. A urohyal bone or
   cartilage.
   [1913 Webster]

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