A liquid used in mixed drinks or as a tonic into which bitter herbs have been steeped (it can also be found in powdered form for adding to mixed drinks).

plural of bitter

Third-person singular simple present indicative form of bitter

(usually in the plural bitters) A liquid or powder, made from bitter herbs, used in mixed drinks or as a tonic. / A type of beer heavily flavored with hops.

Having an acrid taste (usually from a basic substance). / Harsh, piercing or stinging. / Hateful or hostile. / Cynical and resentful.

simple past tense and past participle of bitter

plural of bitterant

A chemical that is added to a product to make it smell or taste bitter.

A citrus tree of the species Citrus ×aurantium, also called Citrus aurantium. / A citrus tree of the species Citrus limetta. / The fruit of these species.

A vine, Momordica charantia, which produces a bitter, though when properly prepared edible, fruit. / (Australia) A similar fruit-bearing vine, Citrullus lanatus (Citroides Group).