1. horned dinosaur any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia
  2. green dinosaur a living fossil or so-called `green dinosaur'
  3. theropod dinosaur any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs
  4. sauropod dinosaur very large herbivorous dinosaur of the Jurassic and Cretaceous having a small head a long neck and tail and five-toed limbs; largest known land animal
  5. armored dinosaur dinosaurs having bony armour
  6. ornithopod dinosaur bipedal herbivorous dinosaur
  7. hornet's nest a highly contentious or hazardous situation
  8. hornets' nest a highly contentious or hazardous situation
  9. argentinosaur huge herbivorous dinosaur of Cretaceous found in Argentina
  10. handedness the property of using one hand more than the other
  11. roundedness the property possessed by a rounded convexity
  12. horned lizard insectivorous lizard with hornlike spines on the head and spiny scales on the body; of western North America
  13. horrendous causing fear or dread or terror
  14. bone-headed dinosaur bipedal herbivorous dinosaurs with bony crowns
  15. horned viper highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye
  16. ornithischian dinosaur herbivorous dinosaur with a pelvis like that of a bird
  17. herniated disc a painful rupture of the fibrocartilage of the disc between spinal vertebrae; occurs most often in the lumbar region
  18. horned toad insectivorous lizard with hornlike spines on the head and spiny scales on the body; of western North America
  19. bird-footed dinosaur any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs
  20. round dance a folk dance; dancers form a circle