1. Psephurus a genus of Polyodontidae
  2. phosphorus a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
  3. Phosphorus a planet seen just before sunrise in the eastern sky
  4. zoophagous (of animals) carnivorous
  5. phosphorous containing or characteristic of phosphorus
  6. Xyphophorus swordtails
  7. Gopherus gopher tortoises
  8. phosphoresce to exhibit phosphorescence
  9. Sophora cosmopolitan genus of trees and shrubs having odd-pinnate leaves and showy flowers; some species placed in genus Podalyria
  10. Lophophorus monals
  11. Cyclophorus tropical Old World ferns having closely crowded circular sori and no indusia
  12. Istiophorus type genus of the Istiophoridae
  13. Ophrys a hardy genus of terrestrial orchids of Europe and northern Africa and western Asia
  14. Pyrophorus tropical click beetles
  15. slow virus a virus that remains dormant in the body for a long time before symptoms appear
  16. vociferous conspicuously and offensively loud
  17. Bosporus a strait connecting the Mediterranean and the Black Sea
  18. Sophonias a Hebrew minor prophet of the late 7th century BC
  19. aphorise speak or write in aphorisms
  20. reovirus any of a group of non-arboviruses including the rotavirus causing infant enteritis

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