antacrid adjective 1noun 1forms 1 adjective1 •(no longer used) Serving to correct acridness of the humours.It is antacrid probably; is called a specific for the epilepsy, and all corrvulsive disorders; and commended also for vertigoes, apoplexies, pleurifies, quartans, worms, and I don't know what. — 1770 noun1 •An antacrid drug.Antacids and antacrids select, from the mineral kingdom, exhibited per anum, vaginam et urethram, to absorb vitiated secretion . — 1825 formsantacrids