fixative
n[C, U]
1 substance used for fixing (fix1 9) photographic film, dye, etc, or for preventing perfume from evaporating too quickly 定影剂; 固色剂; 防(香料)挥发剂.
2 substance used for sticking things together or keeping things in position, esp false teeth or hair 固定剂(尤指粘假牙或假发的)
Dentures require a strong fixative. 粘假牙需用强力固定剂.