dropper

UK: /ˈdrɒpə^r/ US: /ˈdrɑpɚ/ ,(drop′ər)

WordReference Random House Learner's Dictionary of American English © 2026

drop•per /ˈdrɑpɚ/   n. [countable]

1. a person or thing that drops.
2. a glass tube with rubber at one end and a small opening at the other for drawing in a liquid and letting it out in drops;
   eyedropper.

WordReference Random House Unabridged Dictionary of American English © 2026

drop•per  (drop′ər), n. 

1. a person or thing that drops.
2. a glass tube with a hollow rubber bulb at one end and a small opening at the other, for drawing in a liquid and expelling it in drops;
   medicine dropper.
3. Dog and Cat Breeds a short-haired dog that is a cross between a pointer and a setter.

• drop + -er¹ 1690–1700

Collins Concise English Dictionary © HarperCollins Publishers::

dropper / ˈdrɒpə/ noun

1. a small tube having a rubber bulb at one end for drawing up and dispensing drops of liquid
2. a person or thing that drops
3. a short length of monofilament by which a fly is attached to the main trace or leader above the tail fly
4. a batten attached to the top wire of a fence to keep the wires apart