adjuvant

详细解释:a. 辅助的
n. 佐药, 助手
【化】 助剂; 辅助剂; 配料
【医】 辅助的; 辅药, 佐药

英语解释：

名词 adjuvant:

an additive that enhances the effectiveness of medical treatment

形容词 adjuvant:

furnishing added support同义词：accessory, adjunct, ancillary, appurtenant, auxiliary, subsidiary