alarm clock - meaning and definition. What is alarm clock
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What (who) is alarm clock - definition

TYPE OF CLOCK USED TO WAKE UP A SLEEPING PERSON AT A CERTAIN TIME
Clock radio; Snooze bar; Snooze button; Alarm Clock; Alarm clocks; Alarm Clocks; The Alarm Clock; Clock radios; Clock-radio; ⏰; Cell phone alarm; Time Alarm
  • A traditional wind-up (key-wound), mechanical spring-powered alarm clock
  • A mid-1940s alarm clock radio with AM radio stations only.
  • The [[Obelisk of Theodosius]], detail of the pedestal: [[Theodosius I]] offers laurels of victory; we can see the ''[[water organ]] of [[Ctesibius]]'', in the lower right-hand corner.
  • A modern clock radio features a radio/iPod/buzzer as alarms.
  • Sleeptracker, an alarm clock that tracks sleep phases
  • [[Sony Dream Machine]] ICF C242

alarm clock         
n.
1) to set an alarm clock
2) an alarm clock goes off, rings, sounds
Alarm clock         
An alarm clock (or sometimes just an alarm) is a clock that is designed to alert an individual or group of individuals at a specified time. The primary function of these clocks is to awaken people from their night's sleep or short naps; they are sometimes used for other reminders as well.
alarm clock         
(alarm clocks)
An alarm clock is a clock that you can set to make a noise so that it wakes you up at a particular time.
I set my alarm clock for 4.30.
= alarm
N-COUNT

Wikipedia

Alarm clock

An alarm clock or alarm is a clock that is designed to alert an individual or group of individuals at a specified time. The primary function of these clocks is to awaken people from their night's sleep or short naps; they can sometimes be used for other reminders as well. Most alarm clocks make sounds; some make light or vibration. Some have sensors to identify when a person is in a light stage of sleep, in order to avoid waking someone who is deeply asleep, which causes tiredness, even if the person has had adequate sleep. To turn off the sound or light, a button or handle on the clock is pressed; most clocks automatically turn off the alarm if left unattended long enough. A classic analog alarm clock has an extra hand or inset dial that is used to show the time at which the alarm will ring. Alarm clock functions are also used in mobile phones, watches, and computers.

Many alarm clocks have radio receivers that can be set to start playing at specified times, and are known as clock radios. Additionally, some alarm clocks can set multiple alarms. A progressive alarm clock can have different alarms for different times (see next-generation alarms) and play music of the user's choice. Most modern televisions, computers, mobile phones and digital watches have alarm functions that automatically turn on or sound alerts at a specific time.

Pronunciation examples for alarm clock
1. was an alarm clock.
Rosetta - to Catch a Comet _ Mark McCaughrean
2. as your alarm clock.
Deep Thinking _ Garry Kasparov _ Talks at Google
3. How reliable is your alarm clock?
Morning Glory (2010)
4. It is not the alarm clock people,
WomanCode _ Alisa Vitti _ Talks at Google
5. waking up with an alarm clock.
Building Techstars _ Brad Feld & David Cohen _ Talks at Google
Examples of use of alarm clock
1. The alarm clock roars at 6.50am (5.50am UK time). Rupert the Bear begins its TV blare.
2. Well, as excited as you can be when your alarm clock has gone off at 3.25am.
3. Renaissance were having no such luck – or foresight – and were looking for a Mosque alarm clock.
4. Unfortunately, the alarm clock was North Korea‘s preparation to test a long–range missile.
5. On the night table next to the bed sat a small alarm clock.