Some people, however, find this definition useful but far too narrow.

But he gave a useful general definition which is still considered applicable in the computer age:

The combination of these concepts gives us two useful definitions.

"As if we even had a useful definition of 'reality.' "

But a more useful definition would have been a temper tantrum.

Charles Tart provides a useful working definition of auditory driving.

We don't have a useful definition of "reality," for one thing.

This is not a particularly useful definition given the significant distinction between ownership and control.

A more useful definition would include a range of jazz's many improvisational children.

This is a useful definition because it stresses the basic point of everyone (or everything) having the same chance.