en OIII

OIII (capital letter "O" followed by three capital "I"s) may refer to:

Mehrabad International Airport, Tehran, Iran, ICAO designator
OIII or O III, term for doubly ionized oxygen O⁺⁺ in astronomy

This disambiguation page lists articles associated with the title OIII.
If an internal link led you here, you may wish to change the link to point directly to the intended article.