Hydrophobic force is a term frequently used in chemistry and biology to describe the tendency of non-polar molecules to avoid water. This repulsion is due to the fact that water molecules are polar and tend to interact with other polar molecules but repel non-polar molecules. In scientific literature, there are several synonyms for hydrophobic force, including hydrophobic interaction, non-polar hydration force, and hydrophobic effect. Researchers also use the term "oil-water" analogy to explain this phenomenon to a general audience. Hydrophobic force plays a critical role in many biological processes, including protein folding, DNA packing, and the formation of cell membranes.