Source : Webster's Revised Unabridged Dictionary (1913)

Hyracoidea \Hyr`a*coi"de*a\, n. pl. [NL. See {Hyrax}, and
   {oid}.] (Zo["o]l.)
   An order of small hoofed mammals, comprising the single
   living genus {Hyrax}.

Source : WordNet®

Hyracoidea
     n : hyraxes and some extinct animals [syn: {order Hyracoidea}]