DIAZO PRINT accomplished by ammonia fumes or by applying an appropriate developing solution to the face of the sheet. DIAZO PRINT A diazo-type reproduction made on any one of several bases, such as paper, cloth, or plastic sheet. DIAZO PROCESSOR A machine designed to expose and develop diazo-type materials. DICHOTIC The condition in which the sound stimulus presented at one ear differs from the sound stimulus presented at the other ear. The stimulus may differ in sound pressure, frequency, phase, time, duration, or bandwidth. DICHROIC Exhibiting the quality of dichroism. Having two colors (hues). (1) Pertaining to certain crystals that show different colors when viewed in different direction by transmitted light. (2) Pertain- ing to a change of hue with the thickness or concentration of a col- ored medium, especially certain glasses and dye solutions that are blue or green in low densities and red when the density is high. DICHROISM As applied to anisotropic materials, such as certain