资料来源 : Webster's Revised Unabridged Dictionary (1913)

   8. (Med.) The time of the exacerbation and remission of a
      disease, or of the paroxysm and intermission.

   9. (Mus.) A complete musical sentence.

   {The period}, the present or current time, as distinguished
      from all other times.

   Syn: Time; date; epoch; era; age; duration; limit; bound;
        end; conclusion; determination.