Definition of acid bath in English:

acid bath

noun

figurative
  • An act or the process of immersing or washing something (in early medical use occasionally a person) in a container of acid or an acidic solution, typically as part of a manufacturing process; (also) the container or liquid used for this purpose; also figurative and in figurative context.

Origin

Late 18th century; earliest use found in William Blair (1766–1822), surgeon.