'Cleanser' definitions:

Definition of 'cleanser'

From: WordNet
noun
A preparation used in cleaning something [syn: cleansing agent, cleanser, cleaner]

Definition of 'Cleanser'

From: GCIDE
  • Cleanser \Cleans"er\ (kl[e^]nz"[~e]r), n. [AS. cl[=ae]nsere.] One who, or that which, cleanses; especially, a detergent or other preparation used for cleaning. --Arbuthnot.
  • Syn: cleansing agent, cleaner. [1913 Webster]