What does "cleanser" mean?

Someone or something that cleanses, such as a detergent.

What is a synonym for "cleanser"?

Common synonyms include: cleaner, cleansing agent, abstergent, benzine, bleach, borax.

noun

noun ·2 syllables ·Uncommon ·Advanced level

Noun

1
Someone or something that cleanses, such as a detergent.
"The Breeding of Worms in your Desks we cannot prevent, but for the moulding of the books, it may soon be remedied, if the Cleanser of the Library do his duty."
2
a preparation used in cleaning something wordnet

"The cleanser removed the dirt from the oven."

From Middle English clansere, clenser, clensere; equivalent to cleanse + -er.