SYN
acid, acidity, agent, alkali, alkalinity, alloisomer, anion, antacid, antidote, atom, base, biochemical, buffer, cation, chemical, chemical element, chromoisomer, compound, copolymer, counteractant, counteractive, counteragent, counterirritant, dimer, element, heavy chemicals, high polymer, homopolymer, hydracid, inorganic chemical, ion, isomer, macromolecule, metamer, molecule, monomer, nonacid, nullifier, offset, organic chemical, oxyacid, polymer, preventative, preventive, prophylactic, pseudoisomer, radical, reagent, remedy, sulfacid, trimer,