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1. Of, relating to, governed by, or acquired through practice or action, rather than theory or speculation: gained practical experience of sailing as a deck hand.
2. Manifested in or involving practice: practical applications of calculus.
3. Capable of or suitable to being used or put into effect; useful: practical knowledge of Japanese. See Usage Note at practicable.
4. Concerned with the production or operation of something useful: Woodworking is a practical art.
5. Having or showing good judgment; sensible: If we're practical, we can do the job quickly.
6. Being actually so in almost every respect; virtual: The snowstorm was a practical disaster.

[Middle English practicale, from Medieval Latin prācticālis, from prāctica, practice; see practicable.]

prac′ti·cal′i·ty (-kăl′ĭ-tē), prac′ti·cal·ness n.
References in periodicals archive ?
It is particularly important for people who engage in image and relative field to master knowledge and principle of digital image processing, since digital image processing technology has strong theoretical property, practicalness as well as rich and vivid content.
New stool tests for colorectal cancer screening: a systematic review focusing on performance characteristics and practicalness. Int J Cancer 2005;117:169-76.