of an emulsion
The flocculation of an emulsion, viz. the formation of aggregates may be followed by coalescence. If coalescence is extensive it leads to the formation of a macrophase and the emulsion is said to break.
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 611 (