emulsifier

https://doi.org/10.1351/goldbook.E02064
A
surfactant
which when present in small amounts facilitates the formation of an
emulsion
, or enhances its
colloidal
stability by decreasing either or both of the rates of aggregation and
coalescence
.
Source:
PAC, 1972, 31, 577. (Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry) on page 612 [Terms] [Paper]