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      Transformer

      /trænsˈfɔːrmər/

      Meaning & Definition

      noun
      An electrical device that changes the voltage of alternating current.
      The electrician installed a transformer to step down the voltage for residential use.
      A type of neural network model used in natural language processing and other areas of artificial intelligence, known for its self-attention mechanism.
      The latest transformer models have significantly improved the accuracy of language translation.
      A toy that can change shape or form, typically from a robot to a vehicle.
      The child was excited to play with his new transformer that could turn from a robot into a car.

      Etymology

      From 'transform' + '-er', indicating one who transforms.

      Common Phrases and Expressions

      step-up transformer:
      A transformer that increases voltage from primary to secondary.
      step-down transformer:
      A transformer that decreases voltage from primary to secondary.
      power transformer:
      A transformer used in power transmission systems.

      Related Words

      transform
      To change in form, appearance, or structure.
      transformation
      The act or process of transforming.

      Slang Meanings

      A person who changes their style or appearance dramatically.
      After their makeover, they're a total transformer!
      A term for someone who has evolved in personality or behavior.
      Ever since he got that new job, he's become a real transformer.