1 Unit of Water From the Sky, Avg Volume 0.03 ML
Puzzle 19 of Date Night Pack
Question is: 1 Unit of Water From the Sky, Avg Volume 0.03 ML
and the answer is: RAINDROP
Word Meaning:
RAINDROP — A single droplet of rainwater that has just fallen or is falling from the sky.
Definitions from Wiktionary.