What does PRN stand for?

Here's a list of possible definitions for the shorthand PRN:



Physicians' Research NetworkOncology
Pseudo-Random NoiseElectronics
Pro Re Nata (as needed)Physiology
Pseudo-Random NumberMathematics
Packaging Recovery NotesGeneral Business
Premier Retail NetworksCompanies & Firms
Pristina, YugoslaviaAirport Codes
Puerto Rican Cement, Inc.NYSE Symbols
Printer driverFile Extensions
Lotus or Symphony Text fileFile Extensions
Prince Rogers NelsonFamous & Celebs
Packaging Recycling NotesUSPS
Postal Routed NetworkUSPS
PRiNter output fileFile Extensions
Pill Right NowFunnies
Puerto Rican NationalistFBI Files
Page Reference NumberNews & Media
Problem Report NumberGeneral Computing
Plan de Reorganización NacionalGuatemalan
Practice Reporting NetworkNews & Media
Pro Re Nata - as neededPrescription
Pro Re NataUnclassified
Problem Record NumberSoftware
Practicing Registered NurseNursing
Press Release NetworkNews & Media
Physicians Research NetworkResearch
Pro Re Nata (when required)Prescription
Permanent Registration NumberGeneral Business
Professionals Resource NetworkUnclassified
Packaging Recovery NoteUnclassified
Physical Rehabilitation NetworkRehabilitation
Pseudo-Range NodeTelecom
Positive Reinforcement NursingNursing
Progressive Radio NetworkUnclassified
Pseudo Random NoiseUnclassified
Parent Resource NetworkUnclassified
Performance Racing NetworkRacing
Periodic Ring NotificationUnclassified
Person Record NumberUnclassified
Physician Recommended NutriceuticalsPhysiology
Policy Research NetworkResearch
Principal Residency NetworkUnclassified
Professional Receivables NetworkUnclassified
Professional Recovery NetworkUnclassified
Pre-Register NowAdvertising
PrenasalizationAcademic & Science
Professional Research NetworkProfessional Organizations
Program Release NoticeNASA
Pulse Range NavigationNASA

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