fixative

名词 fixative:

1. a compound (such as ethanol or formaldehyde) that fixes tissues and cells for microscopic study
2. a varnish dissolved in alcohol and sprayed over pictures to prevent smudging

1. Dentures require a strong fixative.
   粘假牙需用强力固定剂。

fix.a.tive

n.（名词）
Something that fixes, protects, or preserves, especially:
固定的、防护的或贮藏的东西，尤指：
A liquid preservative applied to artwork, such as watercolor paintings or charcoal drawings.
定色剂：用于水彩画或炭画等艺术作品的液体保护剂
A solution used to preserve and harden fresh tissue for microscopic examination.
固定剂：进行微观考察时用的一种保护和使新鲜组织变硬的溶液
A liquid mixed with perfume to prevent rapid evaporation.
防挥发剂：一种防止迅速挥发的含有香水的液体混合物

【引伸】
fix.ative
adj.（形容词）