(n) in former classifications: comprising plants with a vascular system including ferns and fern allies as well as seed plants, Syn.division Tracheophyta
(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
(n) in former classifications: comprising plants with a vascular system including ferns and fern allies as well as seed plants, Syn.division Tracheophyta
(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
The Collaborative International Dictionary of English (GCIDE) v.0.53
n. 1. an extinct primitive toothed bird (Archaeopteryx lithographica) of the Upper Jurassic having a long feathered tail and hollow bones; usually considered the most primitive of all known birds. Same as archaeopteryx. Syn. -- archaeopteryx. [ WordNet 1.5 ]
‖n. pl. [ NL., from trachea + Gr. fonei^n to sound. ] (Zool.) A group of passerine birds having the syrinx at the lower end of the trachea. [ 1913 Webster ]
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