4. Derived from practice; as, practical skill. Practical joke, a joke put in practice; a joke the fun of which consists in something done, in distinction from something said; especially, a trick played upon a person.
Origin: L. Practicus active, Gr. Fit for doing or performing, practical, active, fr. To do, work, effect: cf. F. Pratique, formerly also practique. Cf. Pragmatic, Practice.