Is “Dimming” a Scrabble word?
Yes
DIMMING
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Dimming
/ˈdɪmɪŋ/
verb
1.To make something less bright.
“He dimmed the lights and put on soft music.”
2.To become darker.
“The lights dimmed briefly when the air conditioning was turned on.”
3.To render dim, obscure, or dark; to make less bright or distinct
noun
1.The process of becoming dim.