An irresistible force or compulsion.
A condition that a solution to an optimization problem must satisfy.
A linkage or other restriction that maintains database integrity.
The repression of one's feelings.
Something that constrains; a restriction.
Something that motivates, rouses, or encourages.
A bonus or reward, often monetary, to work harder.
Inciting; encouraging or moving; rousing to action; stimulating.
Serving to kindle or set on fire.