informal conical or wedge-shaped concrete antitank obstacles protruding from the ground in rows: used in World War II
sow dragon's teeth to take some action that is intended to prevent strife or trouble but that actually brings it about
The Slithery Word Origins Of Your Favorite DragonsRead more in this article about some frequently asked questions and fun facts related to our definitions.
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Word Origin for dragon's teeth
sense 2 from the story of Cadmus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012