Definition of dragon's teeth in English:

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dragon's teeth

plural noun

British informal
Concrete obstacles pointing upwards from the ground in rows, used against tanks in the Second World War.
Example sentences
  • Chairman Paul Melhuish said: ‘We looked at the possibility of fitting dragon's teeth or a barrier that horses and pedestrians could easily step over but would prevent other traffic from using it.’
  • When I was told to attack the Siegfried Line, I was given a 1: 100K map and three aerial photos of the pillboxes and dragon's teeth complex in my assigned sector and told to be ready at 4 A.M. but not to move until ordered.

Phrases

sow (or plant) dragon's teeth

Take action that is intended to prevent trouble, but which actually brings it about.
Example sentences
  • Punishing families and blowing up houses will only sow dragon's teeth.
  • And while it is currently less gory than the one perpetrated by suicide bombers, it is sowing dragon's teeth for the future.
  • The Treaty of Versailles sowed dragon's teeth, generations of enmity.

Origin

With allusion to the teeth of the dragon killed by Cadmus.

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