also: スポイド
syringe; dropper; fountain pen filler
General term for a small tool used to draw up and dispense liquids, such as a bulb syringe, medicine dropper, or fountain pen filler.
from Dutch spuit
I suction the baby's runny nose with a bulb syringe.
I use a fountain pen filler when filling a fountain pen with ink.
eyedropper (computing)
In computing, a tool that picks up a color from the screen, analogous to a physical eyedropper.
I use the eyedropper tool in image editing software to pick up a color.