deafness, x

Impairment or total lo of the sense of sound, apoplec'tiform d., M^nifere's disease. ba d., inability to hear low notes, boil'ermaker's d., lo of hearing due to fatigue of the auditory nerve by the noise incident to riveting the inside of a boiler, cer'ebral d., d. due to disease of the brain in the auditory area, ceru'- mino us d., impairment of hearing due to the presence of a plug of cerumen in the external auditory meatus, cor'tlcal d., d. resulting from a lesion of the cerebral cortex, labyrin'thine d., lo of hearing due to disease of the internal ear. mid'brain d., d. due to a lesion in the fillet region of the tegmentum, mind d., d. due to inability to interpret the soimds heard, mu's ic d., amusia. nerve d., lo of hearing due to disease of the auditory nerve, ner'vous d., d. due to disease of the acoustic centers in the cortex, of the auditory nucleus, or of the nerve terminals in the labyrinth. progre 'ive d., gradually increasing d. due; to