tombstone

  1. Noun.  A headstone marking the person's grave.
  2. Noun.  (mathematics) The symbol "(term, ∎) " marking the end of a proof.
  3. Verb.  (surfing) For a surfboard to stand upright half-submerged in the water (like a tombstone, above) because the surfer is underwater with his or her legrope pulled tight. Often this indicates a surfer in difficulty, either held down by the power of a wave or unconscious and unable to get to the surface.

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This entry was last updated on RefTopia from its source on 3/20/2012.