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  1. ac·tiv·i·ty
    IPA[akˈtivədē]
  2. noun

  3. Variation

    • n.: noun: activity, plural noun: activities

    • noun

      the condition in which things are happening or being done:

      busy or vigorous action or movement:

    • noun

      the activity of a given radioisotope per unit mass.
    • noun

      a wearable device or a computer application that records a person’s daily physical activity, together with other data relating to their fitness or health, such as the number of calories burned, heart rate, etc.:
    • noun

      an animal or human activity that seems inappropriate to the context, such as head-scratching when one is confused, considered to arise unconsciously when a conflict between antagonistic urges cannot be resolved.
    • noun

      the property (displayed by solutions of some compounds, notably many sugars) of rotating the plane of polarization of plane-polarized light.
    • noun

      a wearable device or a computer application that records a person’s daily physical activity, together with other data relating to their fitness or health, such as the number of calories burned, heart rate, etc.:
    • noun

      the activity of a given radioisotope per unit mass.
    • noun

      an animal or human activity that seems inappropriate, such as head-scratching when confused, considered to arise unconsciously when a conflict between antagonistic urges cannot be resolved.
    • noun

      the property (displayed by solutions of some compounds, notably many sugars) of rotating the plane of polarization of plane-polarized light.
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