1. spreading factor an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids
  2. breathing time a short respite
  3. trading floor a large room in a exchange where the trading is done
  4. breathing place a short respite
  5. breathing out the act of expelling air from the lungs
  6. treading water a stroke that keeps the head above water by thrashing the legs and arms
  7. threshing floor a floor or ground area for threshing or treading out grain
  8. breathing apparatus a device that facilitates breathing in cases of respiratory failure
  9. floating voter a voter who has no allegiance to any political party and whose unpredictable decisions can swing the outcome of an election one way or the other
  10. presiding officer the leader of a group meeting
  11. breathing space sufficient room for easy breathing or movement
  12. operating theater a room in a hospital equipped for the performance of surgical operations
  13. bearded vulture the largest Eurasian bird of prey
  14. breathing in the act of inhaling; the drawing in of air as in breathing
  15. clotting factor any of the factors in the blood whose actions are essential for blood coagulation
  16. bring forth bring into existence
  17. breathing device a device that facilitates breathing in cases of respiratory failure
  18. operating theatre a room in a hospital equipped for the performance of surgical operations
  19. breathing spell a short respite
  20. breathing room sufficient room for easy breathing or movement