recurrent

recurrent
adjective

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。
(Anatomy)(of a nerve or blood vessel) turning back so as to reverse direction
(剖)（神经，血管）返回的

派生
recurrently
adverb
语源

late 16th cent. (in sense 2): from Latin recurrent- 'running back', from the verb recurrere (see recur)