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reflex - definition and synonyms

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noun [countable]     reflex pronunciation in British English
Word Forms
  1. 1
    a movement that your muscles make without you thinking about it or being able to control it

    The blinking reflex can be set off by bright light.

    The doctor tested all his reflexes.

  2. 2
    a way of reacting to something that you do very quickly, without thinking about it

    Boxers need to have very quick reflexes.

    1. a.
      [only before noun] a reflex movement or action is one that you do very quickly, without thinking about it

      The goalkeeper made a couple of superb reflex saves.



a rainbow produced when water droplets in the air reflect light from the moon rather than the sun

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