sensitizer
🇬🇧/ˈsensɪtaɪzə(r)/ 🇺🇸/ˈsensəˌtaɪzər/Chemical sensitizer, a chemical that causes allergic reaction in normal tissue after exposure.
noun [专属名词] [感光] 敏化剂;[感光] 感光剂;激敏物
The sensitizer is preferably encapsulated in quite small capsules of a solid. 最好是将敏化剂包裹在十分小的固体包覆层中。