Universal Service Order
United Service Organizations
United Service Organization
Universal Service Obligation
Ultra Stable Oscillator
Ultra-Stable Oscillator
Uniformed Services Organization
Universal Service Obligations
Uniform Service Order
unilat salpingo oophorec
unilateral salpingo oophorectomy
unilateral salpingo-oophorectomy
unilateral salpingoophorectomy
Unit Security Officer
United Services Organisation
United Services Organization
United States Organisation
Unix Software Operation
Unix Software Organization
Unmanned Seismic Observatory
urinary system organs
User Support Office
User Support Organization
Ultrastable Oscillator
Unidentified Submerged Object
Union Sportive Orléans
Union Sportive Oyonnax
Universal Sign-On