The meaning of the Acronym UUO is...

UUO is

• Unimplemented User Operation

More Meanings For UUO:

• Unix-to- Unix Output flag
• Unimplemented User Operation
• Ununoctium (element 118)
• Unilateral Ureteral Obstruction

UUO is also in:

• Assembly
• Chemistry
• Physiology
• Software