KATTDADDY K PUZZLE

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Across
  1. 2. to move by
  2. 5. study of the atmosphere
  3. 6. collecting of air-mail stamps
  4. 9. therapeutics
  5. 13. science or study of gliding
  6. 15. study of navigation through air or space
  7. 17. study of airborne organisms
  8. 18. study of mites
  9. 20. Definition
  10. 22. science of sound
  11. 23. peaceful and happy
Down
  1. 1. dig up
  2. 3. study of medical remedies
  3. 4. a light midday meal
  4. 5. science of air pressure; art of ballooning
  5. 6. study of aerolites; meteorites
  6. 7. physical injury or mental problem
  7. 8. dynamics of gases; science of movement in a flow of air or gas
  8. 10. gap
  9. 11. science of generative organs
  10. 12. study of glands
  11. 14. long burst of gun fire
  12. 16. to harm or injury
  13. 19. grammar book; science of inflections in grammar
  14. 21. rough or injurious force