Is “Decrement” a Scrabble word?
Yes
DECREMENT
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 Decrement
/ˈdɛkɹəmənt/
noun
1.A small quantity removed or lost. One of a series of regular subtractions.
verb
1.To decrease a value by a basic quantity unit.