| 释义 |
ra·dio
I. \ˈrādēˌō sometimes especially formerly ˈrad-\ noun
(-s)
Etymology: short for radiotelegraphy
1.
a. : the transmission and reception of electric impulses or signals by means of electromagnetic waves without a connecting wire
< radio includes wireless, television, and radar >
b. : the use of these waves for the wireless transmission of electromagnetic impulses into which sound is converted — often distinguished from television
2. : a radio message : radiogram
3. : a radio receiving set
4.
a. : a radio sending station
b. : a radio broadcasting organization
< a national radio >
c. : the radio broadcasting industry
< became the youngest announcer in radio — Current Biography >
d. : radio as a medium of communication
< jurisdiction over press, radio, and film — Current Biography >
II. adjective
1. : of, relating to, employing, or operated by radiant energy especially of electromagnetic waves : relating to or employed in radiotelegraphy or radiotelephony or other applications of radio waves
< radio communication >
2. : of or relating to electric currents or phenomena of frequencies between about 15,000 and (10)11 per second
3.
a. : of, relating to, or used in radio or a radio set
< radio transformer >
< radio dial >
b. : specializing in radio or employed in or associated with the radio industry
< radio engineer >
c.
(1) : transmitted by radio
< radio message >
< radio concert >
(2) : making or participating in radio broadcasts
< radio announcer >
< radio commentator >
< radio entertainers >
d. : controlled or directed by radio
III. verb
(-ed/-ing/-s)
transitive verb
1. : to send or communicate by radio
< the sound … is radioed back automatically to the ship — Erwin Raisz >
2. : to send a radio message to
intransitive verb
: to send or communicate by radio |