IPA: /ˈdrɒpər/
KK: /ˈdrɒpər/
A tool used to release small amounts of liquid, typically consisting of a glass or plastic tube with a bulb that creates suction.
She used a dropper to add a few drops of food coloring to the water.
Dropper → It is formed from "drop" (from Old English "dropa", meaning a small amount of liquid) and "-er" (meaning a person or thing that performs an action). A dropper is a device or person that causes drops to be released.
Think of a 'drop' as a small amount of liquid, and the '-er' indicates someone or something that performs the action of dropping.