phenomenon
  • noun an event that exists and is experienced
  • An event, circumstance, or characteristic which can be perceived by the senses. For example, an acoustic or optical phenomenon.
  • An event, circumstance, or characteristic which can be observed and/or recorded utilizing instruments and devices. For instance, electromagnetic phenomena.
  • An event, circumstance, or characteristic which can be theorized upon, without necessarily being able to be observed and/or recorded. For example, the passing of an interval of time beyond the measuring ability of the most precise instrument.

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