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
a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army
an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States
A peacock.
A chamberpot.
Initialism of post office.
Initialism of per os.
Italy's longest river, which flows 652 kilometers eastward to the Adriatic Sea near Venice.