acid, acidity, agent, alexipharmic, alkali, alkalinity, alkalizer, alloisomer, anion, annulling, anthelmintic, antibiotic, antidotal, antidote, antimicrobial, antipyretic, antitoxic, atom, bacteriostatic, base, bicarbonate of soda, biochemical, buffer, buffering, calcium carbonate, canceling, cation, chemical, chemical element, chromoisomer, compound, copolymer, counteractant, counteractive, counteragent, counterbalancing, counterirritant, dimer, element, febrifugal, gastric antacid, heavy chemicals, high polymer, homopolymer, hydracid, inorganic chemical, ion, isomer, macromolecule, magnesia, metamer, molecule, monomer, negating, neutralizer, neutralizing, nonacid, nullifier, nullifying, offset, offsetting, organic chemical, oxyacid, polymer, preventative, preventive, prophylactic, pseudoisomer, radical, reagent, remedy, seltzer, sodium bicarbonate, stultifying, sulfacid, trimer, vitiating, voiding