dropping bottle
noun
a bottle with correlated lengthwise grooves in the neck and in the stopper, permitting a controlled flow of the liquid contents in the form of drops.
Origin of dropping bottle
First recorded in 1820–30
Words nearby dropping bottle
dropped sole,
dropped waist,
dropper,
dropper-in,
dropping,
dropping bottle,
droppings,
drops,
dropsical,
dropsley,
dropsonde