from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An electromechanical or electronic device for automatically opening a door, as one to a garage.
  • n. Informal An effective means of gaining success or seizing an opportunity.


Sorry, no etymologies found.


  • A moment’s work with her manual door opener succeeded in coaxing the airlock hatch open and revealing the welcome sight of Elizabeth Lense.

    Miracle Workers


Log in or sign up to get involved in the conversation. It's quick and easy.