Source : Webster's Revised Unabridged Dictionary (1913)

Poyou \Poy"ou\, n. (Zo["o]l.)
   A South American armadillo ({Dasypus sexcinctus}). Called
   also {sixbanded armadillo}.

Source : WordNet®

poyou
     n : Argentine armadillo with six movable bands and hairy
         underparts [syn: {peludo}, {Euphractus sexcinctus}]