recurrent
/rɪˈkɜːrənt/Definitions
1. adjective
happening or done at regular intervals
“The patient’s recurrent headaches were causing her significant distress.”
2. noun
a repeated occurrence of something
“The doctor was concerned about the recurrent cases of food poisoning in the area.”
3. noun
a phrase or musical theme that is repeated
“The composer’s use of recurrent themes added depth to the symphony.”