O2

(redirected from O-2)
Also found in: Dictionary, Encyclopedia.

O2

symbol for oxygen molecule.

˙O2

Abbreviation for oxygen consumption.

O2

Symbol for the molecular formula for oxygen.

O2

oxygen.
References in periodicals archive ?
At the time of this incident, the O-2 was TAD ashore, attending a school.
30), excluding this O-2, whose death is reflected in the off-duty/recreational statistics.