The biblical definition of righteousness involves the inherent quality of God.

The most formal, axiomatic definition of random variables involves measure theory.

The definitions of torque and angular momentum also involve the cross product.

Shouldn't the definition of folk music involve something more than an outline of formal attributes?

If the definition involves habitual poor judgment in the context of high risk, it's not outrageous to think Jordan may already be there.

The traditional, rational definition of being admitted usually involves spending an overnight in the hospital.

Their definition of faith involves belief, trust, and conviction of Biblical facts to be true.

My definition of patriotism would involve fighting to make sure your country lives up to its highest ideals.

Some points of clarification: first, the definitions above involve quantification over properties and hence higher order logic.

The very definition of the Poietic class involves a certain abnormality.