noun
a stable colloidal suspension, as milk, consisting of an immiscible liquid dispersed and held in another liquid by substances called emulsifiers; specif.,
- Pharmacy such a suspension used as a vehicle for medication
- Photog. a suspension of a salt of silver, platinum, etc. in gelatin or collodion, used to coat plates, film, and paper
Origin:
ModL emulsio < L emulsus, pp. of emulgere, to milk or drain out < e-, out + mulgere, to milk