D defs.my
Entry 1 sense Webster, 1913

Brontozoum

· Bron·to·zo·um · IPA
01 n. An extinct animal of large size, known from its three-toed footprints in Mesozoic sandstone.
  1. 1.
    An extinct animal of large size, known from its three-toed footprints in Mesozoic sandstone.(Paleon.)