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.
fluÂ·id. n. A continuous, amorphous substance whose molecules move freely past one another and that has the tendency to assume the shape of its container; a liquid or gas. adj. 1. Of, relating to, or characteristic of a fluid.2.. A continuous, amorphous substance whose molecules move freely past one another and that has the tendency to assume the shape of its container; a liquid or gas. adj. 1. Of, relating to, or characteristic of a fluid.