dragon's teeth

(redirected from Dragons teeth)

dragon's teeth

pl n
1. (Fortifications) informal conical or wedge-shaped concrete antitank obstacles protruding from the ground in rows: used in World War II
2. sow dragon's teeth to take some action that is intended to prevent strife or trouble but that actually brings it about
[sense 2 from the story of Cadmus]
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References in periodicals archive ?
Other measures include the Active Streets Program which involves the use of 30km/h speed zones around high risk schools and dragons teeth road markings to further alert drivers on entry to school speed zones.
Bellowhead went out with a masterful set including favourites like Roll The Woodpile Down, London Town, Roll Alabama, New York Girls, Frogs Legs and Dragons Teeth, Betsy Baker, and Gosport Nancy.
Speed reduction measures include extra speed-limit signing, road markings, change in surface treatments, dragons teeth, countdown signs, vehicle- activated signs, narrowing, pinch points and central refuges.