1. the fact or process of something happening again, especially repeatedly
2. an instance of something happening again

Examples

• The doctor was concerned about the recurrence of her symptoms.
• We need to prevent a recurrence of this problem.
• There has been no recurrence of the infection since treatment.
• The recurrence of nightmares kept him awake.
• Scientists studied the recurrence of earthquakes in the region.
• The medication reduced the recurrence rate significantly.
• A recurrence of the disease occurred after two years.