Castile soap

(redirected from Hard soap)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Hard soap: soft soap

Castile soap

[ka′stēl ′sōp]
(materials)
A white, odorless, hard soap made from sodium hydroxide and olive oil.
References in periodicals archive ?
It employs 400 people and is the market leader with the hard soap brand, Victoria.
95 [pounds sterling], while the pure organic hard soap costs 3.