1. negative feedback feedback in opposite phase with (decreasing) the input
  2. Jacques Offenbach French composer of many operettas and an opera (1819-1880)
  3. acrophobic suffering from acrophobia; abnormally afraid of high places
  4. agoraphobic suffering from agoraphobia
  5. positive feedback feedback in phase with (augmenting) the input
  6. acquired gotten through environmental forces
  7. biofeedback a training program in which a person is given information about physiological processes (heart rate or blood pressure) that is not normally available with the goal of gaining conscious control of them
  8. feedback the process in which output of a system is returned to input
  9. aggravating making worse
  10. aggravated made more severe or intense especially in law
  11. irrefutable impossible to deny or disprove
  12. acrophobia a morbid fear of great heights
  13. overfeeding excessive feeding
  14. acre-foot the volume of water that would cover 1 acre to a depth of 1 foot; 43,560 cubic feet or 1233.5 cubic meters
  15. aggravate make worse
  16. agoraphobia a morbid fear of open spaces
  17. acquire come into the possession of something concrete or abstract
  18. acquired taste a preference that is only acquired after considerable experience
  19. acarophobia a morbid fear of small insects
  20. agreed upon constituted or contracted by stipulation or agreement