1. denominator the divisor of a fraction
  2. nominator someone who proposes a candidate for appointment or election
  3. domino theory a theory of how nations will come under communist control
  4. dominate be in control
  5. dominated controlled or ruled by superior authority or power
  6. laminator a person who makes laminates (especially plastic laminates)
  7. ruminator a reflective thinker characterized by quiet contemplation
  8. terminator someone who exterminates
  9. mentor a wise and trusted guide and advisor
  10. diminutive very small
  11. comminatory containing warning of punishment
  12. disseminator someone who spreads the news
  13. demander a person who makes demands
  14. minatory threatening or foreshadowing evil or tragic developments
  15. divinatory resembling or characteristic of a prophet or prophecy
  16. domineer rule or exercise power over in a cruel and autocratic manner
  17. detonator a mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive
  18. dominatrix a dominating woman
  19. abominator one who hates or loathes
  20. admonitory expressing reprimand, criticism, or censure