noun
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: ↑archaeopteryx, ↑Archaeopteryx lithographica
• Hypernyms: ↑bird
• Member Holonyms: ↑genus Archaeopteryx, ↑genus Archeopteryx
Useful english dictionary. 2012.