Spelling 4

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Across
  1. 2. an apparatus for accelerating charged particles to high velocities; a particle accelerator
  2. 3. the state of being deceitful and untrustworthy
  3. 5. a person who brings about or initiates something
  4. 9. of or denoting circles, arcs, or other shapes which share the same centre, the larger often completely surrounding the smaller
  5. 11. the rate at which something occurs over a particular period of time or in a given sample
  6. 12. the commander of a century in the ancient Roman army
  7. 14. the action of spending funds
  8. 17. excessive pride in oneself
  9. 18. an act of armed resistance to an established government or leader
  10. 19. a written message in business or diplomacy
  11. 20. an accredited diplomat sent by a state as its permanent representative in a foreign country
  12. 22. (of a tree or shrub) shedding its leaves annually
Down
  1. 1. roomy and comfortable
  2. 4. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  3. 6. divide (an area) into triangles for surveying purposes
  4. 7. the process of converting information or data into a code, especially to prevent unauthorised access
  5. 8. a hot spring in which water intermittently boils, sending a tall column of water and steam into the air
  6. 10. sovereignty or control
  7. 13. a small translucent cover for protecting or forcing outdoor plants
  8. 15. a system of methods used in a particular area of study or activity
  9. 16. tuneful; not discordant
  10. 21. of, by, or appropriate to a law court or judge; relating to the administration of justice