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1. Acting or arriving exactly at the time appointed; prompt.
2. Paid or accomplished at or by the appointed time.
3. Precise; exact.
4. Confined to or having the nature of a point in space.
5. Linguistics Of, related to, or being the verbal aspect that expresses momentary action or action considered as having no temporal duration.
[Middle English, sharp-pointed, from Medieval Latin pūnctuālis, from Latin pūnctum, point, from neuter past participle of pungere, to prick; see pungent.]
punc′tu·al′i·ty (-ăl′ĭ-tē), punc′tu·al·ness (-əl-nĭs) n.