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.
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.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a telephone that communicates by radio waves rather than along cables
Word Usage
"We put her on the satellite radiophone and she gets through to her husband, Joe who is OK."