EMULSION

noun Etymology: New Latin ~-, emulsio, from Latin emulgēre to milk out, from e- + mulgēre to milk; akin to Old English melcan to milk, Greek amelgein Date: 1612 1. a system (as fat in milk) consisting of a liquid dispersed with or without an emulsifier in an immiscible liquid usually in droplets of larger than colloidal size, the state of such a system, suspension 2b(3)