recurrent
/rɪˈkʌrənt/adjective
1
- occurring often or repeatedly, especially (of a disease or symptom) recurring after apparent cure or remission（尤指疾病或症状看似治愈或减轻后）复发的, 反复出现的：
she had a recurrent dream about falling
她反复梦见跌倒
recurrent fever.
回归热。
2
- Anatomy (of a nerve or blood vessel) turning back so as to reverse direction【剖】（神经, 血管）返回的。
派生词
recurrently
adverb词源
late 16th cent. (in sense 2)： from Latin recurrent- 'running back', from the verb recurrere （see RECUR）.