po

1 of 3

abbreviation (1)

by mouth; orally

Po

2 of 3

symbol

polonium

PO

3 of 3

abbreviation (2)

1

petty officer

2

postal order

3

post office

4

purchase order

Word History

Etymology

Abbreviation (1)

Latin per os

Medical Definition

po

1 of 2 abbreviation

per os

—used especially in writing prescriptions

Po

2 of 2 symbol

polonium

Geographical Definition

Po

geographical name

ˈpō 

variants or ancient Padus

ˈpā-dəs 

river 405 miles (652 kilometers) long in northern Italy flowing from the slopes of Mount Viso east into the Adriatic Sea through several mouths