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

Nearby words

  1. p.p.f.,
  2. p.p.s.,
  3. p.q.,
  4. p.r.,
  5. p.r.e.,
  6. p.s.,
  7. p.ss.,
  8. p.t.,
  9. p.t.o.,
  10. p.u.d.

Origin of p.r.n.

From the Latin word prō rē nāta

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for p.r.n.



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.