A liquid used for rinsing the mouth or gargling with, typically containing an antiseptic.
- Before leaving home, as a last-minute precaution, I also indulged in some serious mouthwash gargling, followed by a frantic gum-chewing session.
- And I braced myself for the bad news - would I spend the next six months gargling prescription mouthwash?
- Rinse with antiseptic mouthwash, like Listerine, and floss daily.
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