droplet
n.a very small drop of liquid, like water or oil. You often see them on a window after it rains or on a leaf in the morning.
n.a minute drop of liquid, typically formed by the condensation of a vapour or the breaking up of a larger mass of liquid.
“A single droplet of water fell from the ceiling.”
“The scientist used a microscope to observe how a single droplet of oil spread across the surface of the water.”
“In the humid tropics, the morning sun causes a fine mist of water droplets to rise from the forest floor, creating a dense, silver-hued atmosphere.”
“When clouds contained more droplets, their combined surface area increased.”
“As a result, the same amount of water is divided among many more cloud droplets, making each droplet smaller.”
From drop + -let.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.