niter paper

ni·ter pa·per

paper impregnated with potassium nitrate that is ignited to produce fumes inhaled as treatment for asthma. Synonym(s): potassium nitrate paper, saltpeter paper

potassium nitrate paper

An obsolete therapeutic modality for asthma, in which potassium nitrate-impregnated paper was ignited and the smoke inhaled by the patient.