Is “Underflow” a Scrabble word?
Yes
UNDERFLOW
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 Underflow
noun
1.A current flowing below the surface.
2.A condition in which the value of a computed quantity is smaller than the smallest non-zero value that can be physically stored; usually treated as an error condition
3.The error condition that results from an attempt to retrieve an item from an empty stack
verb
1.To trigger the condition in which the value of a computed quantity is smaller than the smallest non-zero value that can be physically stored.