1. regulation the act of bringing to uniformity
  2. deregulation the act of freeing from rules
  3. triangulation a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points a known distance apart; useful in navigation
  4. matriculation admission to a group, especially a college or university
  5. autoregulation (physiology) processes that maintain a generally constant physiological state in a cell or organism
  6. correlation a reciprocal connection between two or more things
  7. articulation the manner in which things come together and are connected
  8. congratulation acknowledging that someone has an occasion for celebration
  9. coronary occlusion occlusion of a coronary artery caused either by progressive atherosclerosis or by a blood clot
  10. circulation the movement of blood through the heart and blood vessels
  11. recirculation circulation again
  12. strangulation the act of suffocating by constricting the windpipe
  13. reticulation an arrangement resembling a net or network
  14. congratulations an expression of approval and commendation
  15. prorogation discontinuation of the meeting without dissolving it
  16. revelation the act of making something evident
  17. intercalation an insertion into a calendar
  18. vermiculation the process of wavelike muscle contractions of the alimentary tract that moves food along
  19. percolation the slow passage of a liquid through a filtering medium
  20. anaphoric relation the relation between an anaphor and its antecedent