radiophone
(ˈreɪdɪəʊfəʊn)
[f. radio- + -phone.]
1. An instrument for the production of sound by intermittent radiant energy, such as light or heat; the photophone and thermophone are special forms.
| 1881 Bell Sound by Radiant Energy 32 We have decided to adopt the term ‘radiophone’, proposed by M. Mercadier, as a general term signifying an apparatus for the production of sound by any form of radiant energy. |
2. Also radio-phone, radio phone. = radio-telephone.
| 1919 Wireless World May 105/2 (heading) Radiophones over London. 1922 Sci. Amer. Sept. 160/1 The receiver can be worked on very short waves, well below 200 meters, thus opening up a new field of wave lengths for radio-phone broadcasting. 1926 Popular Radio IX. 91 (caption) The first radiophone booth on an ocean liner. 1940 N. Monks Squadrons Up! ii. 39 The boys [sc. pilots] wisecracked to each other into their radio-'phones. 1971 J. Brunner Honky in Woodpile xii. 90 A luxuriously-equipped Mercedes convertible—it even boasted a radiophone. 1978 R. Ludlum Holcroft Covenant xxviii. 322 We use a radiophone off Cap Camarat. |