Isopropyl Rubbing Alcohol. Most rubbing alcohol is made from isopropyl alcohol or isopropanol in water. It is common to find isopropyl rubbing alcohol at concentrations from 68% alcohol in water up to 99% alcohol in water. The 70% rubbing alcohol is highly effective as a disinfectant.
fluid - a substance that is fluid at room temperature and pressure. 1  substance - the real physical matter of which a person or thing consists; DNA is the substance of our genes.
fluid. n. 1. (General Physics) a substance, such as a liquid or gas, that can flow, has no fixed shape, and offers little resistance to an external stress. adj. 2. (General Physics) capable of flowing and easily changing shape. 3. (General Physics) of, concerned with, or using a fluid or fluids.