Definitions

from the GNU version of the Collaborative International Dictionary of English

  • proper n. A natural family of extinct reptiles including the duck-billed dinosaurs.

from The Century Dictionary and Cyclopedia

  • A family of ornithopod dinosaurian reptiles with teeth in several rows, forming, with use, a tessellated grinding-surface.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. duck-billed dinosaurs; upper Cretaceous

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