01 n. pl. An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; -- called also Pterodactyli, and Ornithosauria.
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1.
An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; -- called also Pterodactyli, and Ornithosauria.(Paleon.) Also: <ord>Pterodactyli</ord>, <ord>Ornithosauria</ord>