po
波河;室內便器;便壺
PO
PO程式區 PO
P.O.
n : a noncommissioned officer in the navy with a rank comparable
to sergeant in the army [syn: petty officer, PO]
Po
n 1: 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
[syn: polonium, atomic number 84]
2: a noncommissioned officer in the navy with a rank comparable
to sergeant in the army [syn: petty officer, P.O.]
3: a European river; flows into the Adriatic Sea [syn: Po
River]
4: an independent agency of the federal government responsible
for mail delivery (and sometimes telecommunications)
between individuals and businesses in the United States
[syn: United States Post Office, US Post Office, Post
Office]