re ‧ cur /rɪˈkɜː $ -ɜːr/ BrE AmE verb ( past tense and past participle recurred , present participle recurring ) [intransitive]
[ Date: 1500-1600 ; Language: Latin ; Origin: recurrere 'to run back' , from currere 'to run' ]
1 . if something, especially something bad or unpleasant, recurs, it happens again:
There is a danger that the disease may recur.
Love is a recurring theme in the book.
recurring dream/nightmare
2 . technical if a number or numbers after a ↑ decimal point recur, they are repeated for ever in the same order