antacid

adjective

1. preventing, neutralizing, or counteracting acidity, as of the stomach.

noun

2. an antacid agent.

noun

1. a substance used to neutralize acidity, esp in the stomach

adjective

2. having the properties of this substanceantacid tablets

adj.

1. Counteracting or neutralizing acidity, especially of the stomach.

n.

1. A substance, such as sodium bicarbonate, that neutralizes acid.