In chemistry,<unk> city (from the combining form of water in Attic Greek hydro- and for fear phobos)  refers to the physical property of a molecule (known as a<unk>  that is repelled from a mass of water .<unk> c molecules tend to be non-polar and thus prefer other neutral molecules and nonpolar solvents.<unk> c molecules in water often cluster together forming micelles. Water on<unk> c surfaces will exhibit a high contact angle.
Examples of<unk> c molecules include the alkanes, oils, fats, and greasy substances in general.<unk> c materials are used for oil removal from water, the management of oil spills, and chemical separation processes to remove non-polar from polar compounds.<unk> c is often used interchangeably with "lipophilic". However, the two terms are not synonymous. While<unk> c substances are usually lipophilic, there are exceptions — the silicones, for instance.
Hydrophobe
Sporophyte
Acid-fast
Gram-negative
Gram-positive
Bacillus
Endospore
Aerobic organism