Prn
phrase
phrase ·Rare ·Advanced level
Definitions
Adverb
- 1 according to need (physicians use PRN in writing prescriptions) wordnet
Phrase
- 1 Abbreviation of pro re nata. abbreviation, alt-of
- 2 Abbreviation of pro re nata abbreviation, alt-of
"“‘My return fare was £171. 6s. 0d. and I enclose the counterfoil. I have no record of other expenses; the major items were chilled liquid sedatives on the flight home at 55 cents a shot. Although taken prn, the last dose I remember is the fourth.”"
Example
More examples"“‘My return fare was £171. 6s. 0d. and I enclose the counterfoil. I have no record of other expenses; the major items were chilled liquid sedatives on the flight home at 55 cents a shot. Although taken prn, the last dose I remember is the fourth.”"
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.