Megalonyx

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Megalonyx \Meg`a*lon"yx\, n. [NL., from Gr. me`gas, mega`lh,
     great + 'o`nyx claw.] (Paleon.)
     An extinct quaternary mammal, of great size, allied to the
     sloth.
     [1913 Webster]