pro re nata

1. 1.

   according to need (physicians use PRN in writing prescriptions)

   “add water as needed”

   Synonymsas neededas requiredPRN

Questions about pro re nata

What does pro re nata mean?

pro re nata means "according to need (physicians use PRN in writing prescriptions)".

What is another word for pro re nata?

Close synonyms include as needed, as required, PRN. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is pro re nata a common word?

pro re nata is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.