Why was "tantrum" trending last week?
emulsion e·mul·sion (ĭ-mŭl'shən)
A suspension of small globules of one liquid in a second liquid with which the first will not mix.
A suspension of tiny droplets of one liquid in a second liquid. By making an emulsion, one can mix two liquids that ordinarily do not mix well, such as oil and water. Compare aerosol, foam.