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alternator

alternator

13 5.6
A device in a car that makes electricity to charge the battery and run the electrical system
  • noun
  • /ˈɔltərˌneɪtər/
  • Specialized
translation icon : alternador
  • If your lights are dimming while driving, it might be a sign that the alternator is failing.
  • alternator and battery
  • alternator belt
  • alternator in the engine

Then we leave for Nicaragua the next day and the first alternator goes out.

Examples

  • Instead, the pickup trucks replace conventional alternator/starters with more powerful motor-generators that quickly restart engines stopped for traffic lights.

    Academic text (2004)
  • The mechanic explained how the alternator charges the car battery while driving.

  • Told me about the alternator you put in the truck.

  • First off, you need a new alternator.

  • If the alternator is failing, that means the car is running on the battery, which will die soon.

    Blog text (12)
  • That's the alternator from the truck.

  • In his defense, Mayfield said the Thunderbird's alternator has been acting up.

    Blog text (25)
  • Nah, man, the alternator's gone on the Merc!

  • Tiny 12-volt alternators are struggling, too, under the demand for more juice.

    Academic text (2003)
  • Inside the powerhouse was a Pelton wheel that drove an alternator.

    Blog text (15)

How Powerful

generator
  • Specialized
19 3.5
alternator
  • Specialized
13 5.6
dynamo
  • Specialized
20 6.7

Surface Forms

alternator singular
alternators plural

Morphology

alternator = alternate (transparent) = alternate + ator

The noun is formed by applying the agentive suffix '-ator' to the verb 'alternate', producing a device or agent that performs alternating; this is a standard productive formation.

Etymology

Alternator comes from the word alternate, which means 'to take turns'. An alternator makes electric current that goes 'back and forth', so it is like a 'maker of alternates', which is why it charges a car battery while the engine runs.