apatosaurus

from WordNet (r) 3.0 (2006)

apatosaurus
    n 1: huge quadrupedal herbivorous dinosaur common in North
         America in the late Jurassic [syn: {apatosaur},
         {apatosaurus}, {brontosaur}, {brontosaurus}, {thunder
         lizard}, {Apatosaurus excelsus}]

from The Collaborative International Dictionary of English v.0.48

Apatosaurus \Apatosaurus\ n.
   1. 1 a genus of extinct dinosaurs comprising the brontosaurs;
      apatosaurs.

   Syn: genus {Apatosaurus}.
        [WordNet 1.5]

from The Collaborative International Dictionary of English v.0.48

brontosaur \bron`to*saur"\, n. [NL., fr. Gr. bronth` thunder +
   say^ros lizard.] (Paleon.)
   a dinosaur of the genus {Brontosaurus}; an individual may
   also be called a {brontosaurus} or an {apatosaurus}.
   [PJC]

from The Collaborative International Dictionary of English v.0.48

Brontosaurus \Bron`to*sau"rus\, n. [NL., fr. Gr. bronth` thunder
   + say^ros lizard.] (Paleon.)
   A genus of large sauropod American dinosaurs of the jurassic
   era, or an individual of that genus. A length of sixty feet
   is believed to have been attained by these reptiles. The
   genus is also called {Apatosaurus}, and individuals of the
   genus are also called {brontosaurs}.
   [1913 Webster +PJC]

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