dropper

1. A utensil for dispensing a single drop of liquid at a time.
2. One who or that which drops something, especially one who drops a specific item to cause mischief. · The dropper left the suitcase with the bomb next to the garbage can.
3. An entity that drops objects of a particular kind.
4. A software component designed to install malware on a target system.
5. A fly that drops from the leaden above the bob or end fly.
6. A branch vein which drops off from, or leaves, the main lode.
7. The young bulb of a tulip, not of flowering size.
8. A dog which suddenly drops upon the ground when it sights game.

Plural droppers