Decolourise and dehydrate rapidly with absolute alcohol until there remains only a very faint bluish tint.
It is employed to dehydrate certain oils with which the pork-packer adulterates lard.
Flood with several changes of absolute alcohol to dehydrate the section.
Drop absolute alcohol on to the section from a drop bottle, to dehydrate it.
dehydrate 1854, from Gk. hydor "water" (see water (n.1)). A chemical term at first, given a broader extension 1880s. Related: Dehydration (1834).