Science, Tech, Math › Science Immiscible Definition and Examples (Chemistry) Share Flipboard Email Print David Bautista / Getty Images Science Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated September 13, 2019 The terms miscible and immiscible are used in chemistry to describe mixtures. Immiscible Definition Immiscibility is the property where two substances are not capable of combining to form a homogeneous mixture. The components are said to be "immiscible." In contrast, fluids that do mix together are called "miscible." Components of an immiscible mixture will separate from each other. The less-dense fluid will rise to the top; the more-dense component will sink. Immiscible Examples Oil and water are immiscible liquids. In contrast, alcohol and water are completely miscible. In any proportion, alcohol and water will mix to form a homogeneous solution.