Ornithischian
[awr-nuh-this-kee-uh n] /ˌɔr nəˈθɪs ki ən/
noun
1.
any herbivorous dinosaur of the order Ornithischia, having a pelvis resembling that of a bird.
Compare .
adjective
2.
belonging or pertaining to the Ornithischia.
/ˌɔːnɪˈθɪskɪən/
adjective
1.
of, relating to, or belonging to the Ornithischia, an order of dinosaurs that included the ornithopods, stegosaurs, ankylosaurs, and triceratops
noun
2.
any dinosaur of the order Ornithischia; a bird-hipped dinosaur
ornithischian
(ôr’nə-thĭs’kē-ən)
Any of various dinosaurs belonging to the group Ornithischia, one of the two main divisions of dinosaurs. Ornithischians had a pelvis similar to that of modern birds (although birds are not descended from them), in which part of the pubis pointed backwards and parallel to the ischium. They also had a special bone in front of the lower jaw (called the predentary bone), and frequently had armor plating or bony outgrowths of the skull. Ornithischians comprise all the herbivorous dinosaurs except the sauropods, and include ankylosaurs, hadrosaurs, stegosaurs, and ceratopsians. Compare saurischian.
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- Ornithoid
[awr-nuh-thoid] /ˈɔr nəˌθɔɪd/ adjective 1. resembling a bird.
- Ornithol.
1. . 2. . abbreviation 1. ornithological 2. ornithology
- Ornithological
[awr-nuh-thol-uh-jee] /ˌɔr nəˈθɒl ə dʒi/ noun 1. the branch of zoology that deals with birds. /ˌɔːnɪˈθɒlədʒɪ/ noun 1. the study of birds, including their physiology, classification, ecology, and behaviour adj. 1802, from ornithology + -ical. Related: Ornithologically. n. 1670s, from Modern Latin ornithologia (1590s); see ornitho- + -logy. ornithology (ôr’nə-thŏl’ə-jē) The scientific study of birds.