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What does NPO stand for?

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Rank Abbr.Meaning
NPONil Per Os (Latin: Nothing by Mouth)
NPONon Per Os (Latin: Nothing by Mouth)
NPONational Public Health Officer
NPONational Public Observatory (Radium Springs, NM)
NPONulla Per Os (Latin: Nothing By Mouth, also Non/Nil Per Os)
NPONucleus Preopticus
NPONaval Petroleum and Oil Shale Reserves
NPONon-Product Output
NPONorth Pacific Oscillation (meteorology)

showing only Science & Medicine definitions (show all 31 definitions)

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