Definition of ankylosaur in English:


Syllabification: an·ky·lo·saur
Pronunciation: /ˈaNGkiləˌsôr
(also ankylosaurus /ˌaNGkiləˈsôrəs/)


A heavily built quadrupedal herbivorous dinosaur primarily of the Cretaceous period, armored with bony plates.
  • Infraorder Ankylosauria, order Ornithischia: several genera, in particular Ankylosaurus
More example sentences
  • The ankylosaurs were heavily armoured dinosaurs, 2 to 10 meters long, quadrupedal, slow moving, and fed on swampy soft vegetation.
  • Skeletons range from twelve-foot remains of the armored dinosaurs known as ankylosaurs, with almost every piece of bony plate intact, to two-inch skeletons of early mammals, complete down to their fragile, microscopic ear bones.
  • These were the fragmentary remains of an armored dinosaur, an ankylosaur.


early 20th century: from modern Latin Ankylosaurus, from Greek ankulos (see ankylosis) + sauros 'lizard'.



More example sentences
  • Most recently, a new ankylosaur was named on the basis of an incomplete mandible and fragmentary cranial material, but the ankylosaurian affinities and validity of this taxon are doubtful.
  • This is the first description of ostoederms and ankylosaurian material from Coahuila.
  • Dr Barrett has been reviewing remains of ankylosaurian dinosaurs found around Trumpington, Haslingfield, Bottisham, Reach and Burwell.

Definition of ankylosaur in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day demoralize
Pronunciation: dəˈmôrəˌlīz
cause (someone) to lose confidence or hope; dispirit