1. effect a phenomenon that is caused by some previous phenomenon
  2. effectiveness power to be effective
  3. affect have an influence upon
  4. effectively in a manner producing an intended result
  5. effective producing or capable of producing an intended result
  6. effectivity power to be effective
  7. objective the goal intended to be attained
  8. affective disorder any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant
  9. aversive stimulus any negative stimulus to which an organism will learn to make a response that avoids it
  10. active site the part of an enzyme or antibody where the chemical reaction occurs
  11. electronic stylus (computer science) a pointer that when pointed at a computer display senses whether or not the spot is illuminated
  12. perfective tense a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)
  13. infectious disease a disease transmitted only by a specific kind of contact
  14. negative stimulus a stimulus with undesirable consequences
  15. refractive index the ratio of the velocity of light in a vacuum to that in a medium
  16. active citizen a citizen who takes an active role in the community
  17. detective story a narrative about someone who investigates crimes and obtains evidence leading to their resolution
  18. affectedness the quality of being false or artificial
  19. affectedly in an affected manner
  20. elective course a course that the student can select from among alternatives

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