单词 | radio alarm clock |
释义 | > as lemmasradio alarm clock radio alarm clock n. (a) an alarm clock activated by a radio signal (now rare); (b) a combined radio and alarm clock, which can be set so that the radio switches on automatically at a chosen time. ΚΠ 1922 Washington Post 22 Aug. 17/8 A radio alarm clock... When the proper combination of dots and dashes is received the last signal operates a relay that closes the circuit and rings a bell. 1939 Southeast Economist (Chicago) 4 May 1/1 Now..you can wake up with music; that is, if you have one of the new-fangled radio alarm clocks. 2003 R. S. Bridger Introd. Ergonomics xv. 446 Set the alarm on a radio alarm clock when it is in ‘time’ mode. < as lemmas |
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