from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A radiotelephone.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a photophone
- n. a radiotelephone
from the GNU version of the Collaborative International Dictionary of English
- n. An apparatus for the production of sound by the action of luminous or thermal rays. It is essentially the same as the photophone.
- n. a telephone using radio waves, rather than wires, to convey the voice signal.
from The Century Dictionary and Cyclopedia
- n. An instrument in which a sound is produced by the successive expansions and contractions of a body under the action of an intermittent beam of radiant heat thrown upon and absorbed by it.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a telephone that communicates by radio waves rather than along cables
Sorry, no etymologies found.