| 1. | a decorated blown glass ball. |
| 2. | (in the 18th century) a hollow sphere of colored glass hung in the window of a house to protect it against witchcraft. |
witch ball
a hollow glass sphere, sometimes as large as 7 inches (18 cm) in diameter. Witch balls are made in several colours, among which green and blue predominate. Its name is possibly a corruption of the 18th-century term watch ball
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