Try Our Apps
Dictionary.com

follow Dictionary.com

2017 Word of the Year

p.r.n.

1.
(in prescriptions) as the occasion arises; as needed.
Origin of p.r.n.
From the Latin word prō rē nāta
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
British Dictionary definitions for prn

prn

abbreviation (in prescriptions)
1.
pro re nata
Word Origin
Latin: as the situation demands; whenever needed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
prn in Medicine

p.r.n. or PRN
abbr.
Latin pro re nata (as the situation demands)

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Nearby words for prn

Word Value for prn

0
0
Scrabble Words With Friends