Noun
Incapability of being mixed, or mingled.
Source: Webster's dictionaryAgain, the immiscibility of most epoxy and acrylic resins with water necessitates the use of dehydration, usually with ethanol. Source: Internet
An example for the immiscibility of oil and water is a leak of petroleum from a damaged tanker, that does not dissolve in the ocean water but rather floats on the surface. Source: Internet
Dilution refrigerators use this immiscibility to achieve temperatures of a few millikelvins. Source: Internet