PRN (Pro re nata)
Type: initialism
From the Latin 'pro re nata' meaning 'as needed' or 'when necessary'.
Learn more: https://en.wikipedia.org/wiki/Pro_re_nata
From the Latin 'pro re nata' meaning 'as needed' or 'when necessary'.
Learn more: https://en.wikipedia.org/wiki/Pro_re_nata