• (a.) Hydroxybenzoic; pertaining to, or designating, any one of several hydroxyl derivatives of benzonic acid, of which the commonest is salicylic acid.
Ox`y·ben·zo'ic adjective [ Oxy- (b) + benzoic .] (Chemistry) Hydroxybenzoic; pertaining to, or designating, any one of several hydroxyl derivatives of benzonic acid, of which the commonest is salicylic acid.