Definition of

Po

  1. (noun, substance) a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
  2. (noun, person) a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army
  3. (noun, object) a European river; flows into the Adriatic Sea
  4. (noun, group) an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States

via WordNet, Princeton University

Origin of the word Po

  1. large river in northern Italy, from L. Padus, a name of Celtic origin. more

via Online Etymology Dictionary, ©2001 Douglas Harper

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