Bittergent is a term that refers to a substance or agent that imparts a bitter taste to food or beverages. It is often used in the context of food and drink industries to enhance flavors or mask sweetness. Bittergents can also have applications in pharmaceuticals and herbal remedies, where bitterness is associated with certain health benefits. Common examples include compounds like quinine in tonic water or various bitter herbs used in cooking and cocktails.