noun.
A medicine or agent to assist hearing.
adjective.
Pertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory.
adjective.
the auditory duct, or external passage of the ear.
adjective.
a telegraph making audible signals; a telephone.
adjective.
brazen tubes or vessels, shaped like a bell, used in ancient theaters to propel the voices of the actors, so as to render them audible to a great distance.