1. atrial fibrillation fibrillation of the muscles of the atria of the heart
  2. ventricular fibrillation fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest
  3. defibrillation treatment by stopping fibrillation of heart muscles
  4. proliferation a rapid increase in number
  5. fibrillation muscular twitching involving individual muscle fibers acting without coordination
  6. tribulation an annoying or frustrating or catastrophic event
  7. prefabrication the manufacture of sections of a building at the factory so they can be easily and rapidly assembled at the building site
  8. serial operation the sequential execution of operations one after another
  9. trial balloon a test of public opinion
  10. biserial correlation a correlation coefficient in which one variable is many-valued and the other is dichotomous
  11. refabrication assembling again
  12. attorney-client relation the responsibility of a lawyer to act in the best interests of the client
  13. medical relation the professional relation between a health care professional and a patient
  14. indirect correlation a correlation in which large values of one variable are associated with small values of the other; the correlation coefficient is between 0 and -1
  15. trial impression (printing) an impression made to check for errors
  16. assimilation the process of absorbing one cultural group into another
  17. partial correlation a correlation between two variables when the effects of one or more related variables are removed
  18. interpolation the action of interjecting an action or remark
  19. interpellation the action of interjecting or interposing an action or remark that interrupts
  20. Battle of Britain the prolonged bombardment of British cities by the German Luftwaffe during World War II and the aerial combat that accompanied it