ˈear-ˌtrumpet
An apparatus in the form of a straight or convoluted conoidal tube, used by persons somewhat deaf, to enable them to hear more distinctly.
| 1776 Burney Hist. Mus. I. 184 Perhaps Asclepiades was the inventor of the acousticon, or ear-trumpet. 1823 Byron Juan x. xxxiv, The ear-trumpet of my good old aunt. |