fixative
noun [ C or U ] uk/ˈfɪk.sə.tɪv/ us/ˈfɪk.sə.t̬ɪv/
固定剂
a substance that holds something in position
a fixative for dentures 假牙固定剂
定影剂;定色剂
a chemical used to treat photographic material in order to preserve its colour
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