officer of the day
noun
,
Military
1.
an officer who has charge of the guard and prisoners on an assigned day at a military installation.
Abbreviation:
OD, O.D., O.O.D.
Origin
1835-45
Examples from the web for
officer of the day
Conducts
officer of the day
and back-up duties as required.
British Dictionary definitions for
officer of the day
officer of the day
noun
1.
a military officer whose duty is to take charge of the security of the unit or camp for a day
Also called
orderly officer