Doorstopper

noun

Definitions

Noun
  1. 1
    A doorstop: a device for halting the motion of a door.
  2. 2
    a stop that keeps open doors from moving wordnet
  3. 3
    A large book, which by implication could be used to stop a door. humorous

    "So Steven Pinker is stretching the genre with his 450-page doorstopper Enlightenment Now: A Manifesto for Science, Reason, Humanism and Progress."

  4. 4
    A gauge used in geophysics.

Etymology

From door + stopper.

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