drop
A small quantity of liquid, just large enough to hold its own rounded shape through surface tension, especially one that falls from a source of liquid.
Example
“Put three drops of oil into the mixture.”
Other meanings
A dose of liquid medicine in the form of a drop (sense 1).
A liquid medicine that is intended to be administered in drops (sense 1).
Example sentences
Word history
From Old English "dropa" (a drop).
Where this comes from
This definition is adapted from “drop” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.