remission

详细解释:n. 宽恕, 豁免, 免罪, 缓和, 减轻
【医】 缓解, 弛张
【经】 (债务,捐税等的)免险

英语解释：

名词 remission:

an abatement in intensity or degree (as in the manifestations of a disease)同义词：remittal, subsidence