P.r.n. definitions

p.r.n.

As required
Found on http://www.generalandmedical.com/glossary/index_alpha_Results.asp?mode=P

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p.r.n.

p.r.n.: Abbreviation meaning 'when necessary' (from the Latin 'pro re nata', for an occasion that has arisen, as circumstances require, as needed). One of a number of hallowed abbreviations of Latin terms that have traditionally been used in prescriptions. Some others: a.c. = before meals (from 'ante cibum', before meals) b.i.d. = twice a day (from...
Found on http://www.medterms.com/script/main/art.asp?articlekey=8309

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p.r.n.

abbreviation for Latin pro re na´ta (according to circumstances).
Found on http://www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszS

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p.r.n.

When required
Found on http://www.translationdirectory.com/glossaries/glossary140.htm

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p.r.n.

pro re nata, p.r.n. As the occasion arises; as needed. Units of mottoes and proverbs listed by groups: A to X.
Found on http://www.wordinfo.info/words/index/info/view_unit/3477/8

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p.r.n.

(in prescriptions) as the occasion arises; as needed.
Found on https://www.infoplease.com/dictionary/prn

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