1. Jerusalem cricket large wingless nocturnal grasshopper that burrows in loose soil along the Pacific coast of the United States
  2. Jerusalem cross a cross with equal arms, each terminating in a small crossbar
  3. Jerusalem artichoke tall perennial with hairy stems and leaves
  4. Jerusalem Warriors ethnic Turkish Sunni terrorists who are linked with the Turkish Hizballah; killed a United States Air Force sergeant in 1991
  5. Jerusalem cherry small South American shrub cultivated as a houseplant for its abundant ornamental but poisonous red or yellow cherry-sized fruit
  6. Jerusalem sage a spreading subshrub of Mediterranean regions cultivated for dense axillary whorls of purple or yellow flowers
  7. Jerusalem oak Eurasian aromatic oak-leaved goosefoot with many yellow-green flowers; naturalized North America
  8. William Crookes English chemist and physicist
  9. Ascaris lumbricoides intestinal parasite of humans and pigs
  10. Sir William Crookes English chemist and physicist
  11. Jerusalem thorn thorny Eurasian shrub with dry woody winged fruit
  12. genus Micrococcus type genus of the family Micrococcaceae
  13. genus Circaetus harrier eagles
  14. Cricetus cricetus a variety of hamster common to Europe and Asia
  15. genus Macroclemys includes the alligator snapping turtle
  16. Ursus arctos large ferocious bear of Eurasia
  17. genus Rickettsia can cause typhus and Rocky Mountain spotted fever in humans
  18. research rocket a rocket fired for test purposes
  19. James Crichton Scottish man of letters and adventurer (1560-1582)
  20. genus Crocuta a genus of Hyaenidae