Found 2 items, similar to Archaeopteryx.
English → English (WordNet) Definition: archaeopteryx archaeopteryx n : extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds [syn: archeopteryx, Archaeopteryx lithographica]
English → English (gcide) Definition: Archaeopteryx Archaeopteryx \Ar`ch[ae]*op"te*ryx\, n. [Gr. 'archai^os ancient + pte`ryx wing.] (Paleon.) A fossil bird, of the Jurassic period, remarkable for having a long tapering tail of many vertebr[ae] with feathers along each side, and jaws armed with teeth, with other reptilian characteristics. [1913 Webster]