from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • initialism Polish National Alliance
  • initialism Personal Navigation Assistant
  • initialism biochemistry Peptide nucleic acid
  • initialism pathology Pulmonary nodular amyloidosis


Sorry, no etymologies found.


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  • The PNA is the periodic (30-year) shift in North Pacific sea surface temperatures (SSTs) from predominately warm (positive) phases to predominately cool (negative) phases.

    NBC3 - Local News

  • "Today we have heard very clearly the statement of support unanimously by all the EU members that the PNA is the only legitimate authority, and has representation not only in the West Bank but also in the Gaza Strip," PNA Foreign Minister Riad al-Malki told a press conference after the talks.

    Top Stories - Google News

  • Related molecules, such as PNA and TNA have been proposed.

    Bits and Pieces of an RNA World

  • While much of the past work with DNA analogs such as PNA has focused on nucleobases already anchored to their backbone units, Ghadiri had the idea of working with simpler building blocks. - latest science and technology news stories

  • As shown above, the GFS model ensembles (in red) are uniform in predicting a reverse (negative) PNA pattern through the end of February.

    Bad pattern for snow through end of February

  • The observed (since mid-October) forecast (out to two weeks) PNA pattern.

    Bad pattern for snow through end of February

  • But what of an entity that has some allegience in disputed territory, and only there, like the PNA or the Eelam Tigers (before they were defeated)?

    The Volokh Conspiracy » The Palestinian Authority and the ICC

  • The two biggest challenges obstructing a viable peace deal are the hawks in Israel refusing to give more than a token concession and the PNA being unable or unwilling to reign in Hamas, PIJ, and the other rejectionist groups.

    Think Progress » ThinkFast: January 26, 2010

  • We are currently stuck in the reverse Pacific North American Pattern RPNA, more information on the PNA and RPNA as illustrated to the right.

    Bad pattern for snow through end of February

  • Additionally, the authors did not consider the likely critical influence of the third ingredient I mentioned, the Pacific North American (PNA) teleconnection - which can help lock in cold air over the East - in setting the stage (and enhancing predictability) for the snowstorms.

    D.C. record snow in 2010 not due to global warming


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