The town coat of arms depicts the worm (English: worm, dragon), German: Worms, Wurm as in Tatzelwurm, Lindworm).
They are in the shape of a lindworm (a flightless dragon with serpentine body and two or no legs) and were first translated in the mid-19th century by Carl Christian Rafn, the Secretary of the Kongelige Nordiske Oldskrift-Selskab (Royal Society of Nordic Antiquaries).