Is “Stickum” a Scrabble word?
Yes
STICKUM
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 Stickum
/ˈstɪkəm/
noun
1.Any adhesive, adhesive residue; any sticky or gummy substance.