a. 复发的

[医] [短期后]复发的

[ adj ]
the revival of an unfortunate situation after a period of abatement
<adj.all>
the patient presented with a case of recrudescent gastralgia

Recrudescent \Re`cru*des"cent\ (-sent), a. [L. recrudescens,
-entis, p. pr. of recrudescere to become raw again; pref. re-
re- + crudescere to become hard or raw: cf. F. recrudescent.]
1. Growing raw, sore, or painful again.

2. Breaking out again after temporary abatement or
supression; as, a recrudescent epidemic.