Fixative

['fɪksətɪv]

(noun.) a varnish dissolved in alcohol and sprayed over pictures to prevent smudging.

(noun.) a compound (such as ethanol or formaldehyde) that fixes tissues and cells for microscopic study.

Typed by Carla--From WordNet

(n.) That which serves to set or fix colors or drawings, as a mordant.

Checker: Louie