D defs.my
Entry 1 sense Webster, 1913

Antacid

/(ănt*ăs"ĭd)/ · Ant·ac·id · IPA /ænˈtæsɪd/
01 n. A remedy for acidity of the stomach, as an alkali or absorbent.
  1. 1.
    A remedy for acidity of the stomach, as an alkali or absorbent.(Med.)