Not valid; not true, correct, acceptable or appropriate.
Suffering from disability or illness.
Intended for use by an invalid.
To make invalid or affect with disease.
To exempt from (often military) duty because of injury or ill health.
A prop that has some degree of functionality, rather than being a mere imitation.
A light fixture used for set lighting and seen in the frame of a shot as part of the scenery.
A part of an exam or series of exams in which the candidate has to demonstrate their practical ability
Laboratory experiment, test or investigation
Light fixtures used for set lighting and seen in the frame of a shot as part of the scenery.
Being likely to be effective and applicable to a real situation; able to be put to use.
Of a prop: having some degree of functionality, rather than being a mere imitation.
Of a person, having skills or knowledge that are practical.
Relating to, or based on, practice or action rather than theory or hypothesis.