Clouding

n.	1.	A mottled appearance given to ribbons and silks in the process of dyeing.
	2.	A diversity of colors in yarn, recurring at regular intervals.

Noun

1.

clouding - the process whereby water particles become visible in the sky Synonyms: clouding up

cloud, clouding up, evaporation, overcast, vapor, vaporisation, vaporization, vapour