activity - Dictionary definition and pronunciation - Yahoo! Education

Definition of activity

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ac·tiv·i·ty  audio  (k-tv-t) KEY 

NOUN:
pl. ac·tiv·i·ties
  1. The state of being active.
  2. Energetic action or movement; liveliness.
    1. A specified pursuit in which a person partakes.
    2. An educational process or procedure intended to stimulate learning through actual experience.
  4. The intensity of a radioactive source.
  5. The ability to take part in a chemical reaction.
  6. A physiological process: respiratory activity.



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