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There are 15 thirteen-letter words containing OSAU

APATOSAURUSESapatosauruses n. Plural of apatosaurus.
APATOSAURUS n. a kind of long-necked dinosaur, also APATOSAUR.
ARCHOSAURIANSarchosaurians n. Plural of archosaurian.
ARCHOSAURIAN n. any of a subclass of reptiles comprising pterosaurs, dinosaurs and crocodilians, also ARCHOSAUR.
BRACHIOSAURUSbrachiosaurus n. A large herbivorous sauropod dinosaur, Brachiosaurus altithorax, which lived during the Jurassic period.
Brachiosaurus prop.n. A taxonomic genus within the family Brachiosauridae – brachiosauruses.
BRACHIOSAURUS n. any member of a genus of huge lizard-hipped plant-eating dinosaurs.
CETEOSAURUSESCETEOSAURUS n. a large Jurassic dinosaur.
DOLICHOSAURUSDOLICHOSAURUS n. any member of the Dolichosauria, a group of Cretaceous fossil reptiles.
HADROSAURUSESHADROSAURUS n. a large dinosaur.
ICHTHYOSAURUSichthyosaurus n. (Archaic) Alternative form of ichthyosaur.
ichthyosaurus n. Any members of the genus Ichthyosaurus.
Ichthyosaurus prop.n. A taxonomic genus within the family Ichthyosauridae – large, extinct marine reptiles.
MEGALOSAURIANmegalosaurian n. A dinosaur of the genus Megalosaurus.
megalosaurian adj. Of or relating to the dinosaurs of the genus Megalosaurus.
MEGALOSAURIAN n. a large dinosaur, also MEGALOSAUR, MEGALOSAURUS.
PLESIOSAURIANplesiosaurian n. A plesiosaur.
PLESIOSAURIAN n. a member of the reptile order Plesiosauria, extinct marine reptiles of Mesozoic times.
PTEROSAURIANSpterosaurians n. Plural of pterosaurian.
PTEROSAURIAN n. a pterodactyl, also PTEROSAUR.
STEGOSAURIANSstegosaurians n. Plural of stegosaurian.
STEGOSAURIAN n. any quadrupedal herbivorous ornithischian dinosaur of the suborder Stegosauria.
STEGOSAURUSESstegosauruses n. Plural of stegosaurus.
STEGOSAURUS n. a herbivorous dinosaur of the Jurassic period, also STEGOSAUR.
TELEOSAURIANSteleosaurians n. Plural of teleosaurian.
TELEOSAURIAN n. a teleosaur, a member of a Jurassic genus of fossil crocodiles.
TYRANNOSAURIDtyrannosaurid n. (Zoology) Any dinosaur in the family Tyrannosauridae.
TYRANNOSAURUStyrannosaurus n. A large carnivorous dinosaur, of the genus Tyrannosaurus, found in North America during the late Cretaceous period.
Tyrannosaurus prop.n. A taxonomic genus within the family Tyrannosauridae – tyrannosaurs.
TYRANNOSAURUS n. a large carnivorous lizard-hipped dinosaur, common during the Cretaceous period, also TYRANNOSAUR.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 122 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 3 words


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