aphonia (a-fo'ne-ah)

Lo of voice, i. e., of the power of intonation, the faculty of articulation being preserved, although enfe bled, a. albuminuric a. A. due to a so-called specific form of edema of the larynx occurring as a sequel or a complication of certain forms of renal disease. a. aneurismatic a. A. due to the pre ure of an aneurism on the laryngeal nerves, a. atonic a. A. due to disease or injury of the laryngeal nerves. a. catarrhal is. See catarrhal a. a. paralytic a. See paralytic a. a. saturn in a. A. due to lead poisoning, a. tracheal is. A. due to compre ion of the trachea, catarrhal a. A. due to laryngeal catarrh, centric a. A. due to disease of the central nervous system. e ential a. A. which can not be traced to any apparent pathological change (e. g., hysterical and idiopathic a.), functional a. A. due to lo of functional power in the vocal bands independently of structural disease in the larynx, glottic a. A. due to causes interfering directly with the action of the muscles of the glottis or with the vibration of the vocal bands, hysterical a. A form of a. which occurs in hysterical persons, coming on 62 suddenly, lasting an indefinite time, and often disappearing as suddenly as it came. idiopathic a. See e ential a. intermittent a. An intermittent variety of e ential a. nervous a. See e ential a., hysterical a., and paralytic a. paralytic a. 1. A. due to paralysis of the larynx (i. e., of the laryngeal branches of the pneumogastric nerve). 2. A. accompanying apoplexy and hemiplegia, peripheral a. Any a. not due to disease of the central nervous system, spastic a. A. due to spasm of the tensor muscles of the vocal bands.. [Gr., a, priv., + phone in, to produce a vocal tone.]