"Water-in-oil" is an emulsion where tiny droplets of water are dispersed in a continuous oil phase. This type of emulsion is commonly found in products like margarine and certain cosmetics. The water droplets are surrounded by oil, which helps to stabilize the mixture and prevent separation. In a water-in-oil emulsion, the oil acts as the primary medium, while the water provides moisture. This combination can enhance texture and improve the product's sensory properties. Proper emulsifiers are often used to maintain stability and ensure that the water and oil do not separate over time.