Noun: Po- A European river; flows into the Adriatic Sea
- Po River - 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
- polonium, atomic number 84 Noun: PO- An independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States
- United States Post Office, US Post Office, Post Office - A noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army
- petty officer, P.O.
Derived forms: POs, Pos Type of: enlisted officer, independent agency, metal, metallic element, noncom, noncommissioned officer, river Part of: Italia, Italian Republic, Italy Encyclopedia: Po, Burkina Faso PO |