Intended for or understood by only a small group, especially one with specialized knowledge or interests: an esoteric philosophical doctrine. See Synonyms at mysterious. b. Relating to or being a small group with specialized knowledge or interests: an esoteric circle.
Rubbing alcohol is neither an acid nor a base. Acids have pH values less than 7 and bases have pH values that are greater than 7. Rubbing alcohol has a pH value of 7, so it is neutral. Rubbing alcohol is also called isopropyl alcohol.
Rubbing alcohol is used to clean the skin and piercing instruments before piercing ears or other body parts, and it is often used in hospitals to swab floors and surfaces. The alcohol disrupts cell structures of bacteria and other pathogens, killing them on contact.