B1
a small round-shaped amount of liquid
Dictionary examples:
The chef cried when a drop of soup fell on his shiny shoes. (0.0)
The scientist got excited over a single drop of green slime. (0.0)
My dog chased a drop of water around the kitchen floor for hours. (0.0)
I thought I felt a drop of rain. (22.8)
There were little drops of paint on the kitchen floor. (22.8)