Drop·ping n.
1. The action of causing to drop or of letting drop; falling.
2. pl. That which falls in drops; the excrement or dung of animals; -- often used in the plural.
Dropping bottle, an instrument used to supply small quantities of a fluid to a test tube or other vessel.
Dropping fire, a continued irregular discharge of firearms.
Dropping tube, a tube for ejecting any liquid in drops.
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