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p.r.n.

abbreviation for

  1. (in prescriptions) as the occasion arises; as needed.

prn

abbreviation for

  1. pro re nata

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Word History and Origins

Origin of p.r.n.1

From Latin prō rē nāta

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Word History and Origins

Origin of p.r.n.1

Latin: as the situation demands; whenever needed

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gallimaufry

[gal-uh-maw-free ]

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