1. The act of exposing the body, or part of the body, for purposes of cleanliness, comfort, health, etc., to water, vapor, hot air, or the like; as, a cold or a hot bath; a medicated bath; a steam bath; a hip bath. 2. Water or other liquid for bathing. 3. A receptacle or place where persons may immerse or wash their bodies in water. 4. A building containing an apa...