D defs.my
Entry 1 sense Webster, 1913

brontosaur

· bron·to·saur · IPA
01 n. a dinosaur of the genus Brontosaurus; an individual may also be called a brontosaurus or an apatosaurus.
  1. 1.
    a dinosaur of the genus Brontosaurus; an individual may also be called a brontosaurus or an apatosaurus.(Paleon.) Also: brontosaurus, apatosaurus