| Abbreviation | Definition |
|---|---|
| LTW | Lake Tahoe Water |
| LU | Lutetium |
| LU | Logical Unit |
| LUA | Left Upper Arm |
| LUE | Left upper extremity |
| LUF | Leg Ulcer Forum Journal |
| LUG | List Useless Garbage |
| LUI | Load Upper Immediate |
| LUL | Left Upper Lobe |
| LUMPS | Liver Unit Management Protocol System |
| LUN | Logical Unit Number |
| LUNA | Laparoscopic Uterine Nerve Ablation |
| LUOQ | Left Upper Outer Quadrant |
| LUP | Longest Unassisted Program |
| LUQ | Left Upper Quadrant |
| LUS | Land Use Statistics |
| LUST | Leaking Underground Storage Tank |
| LUT | Look - Up Table |
| LUTCF | Life Underwriter Training Council Fellow |
| LV | Left Value |
| LV | Left Ventricle |
| LV | Left Ventricular |
| LV | Low Vision |
| LV | Low Volume |
| LV | Living Vigoriously |
| LVAD | Left Ventricular Assist Device |
| LVAS | Left Ventricular Assist System |
| LVAS | Large Vestibular Aqueduct Syndrome |
| LVC | Laser Vision Correction |
| LVDS | Low-Voltage Differential Signalling |
| LVEDP | Left Ventricular End Diastolic Pressure |
| LVEF | Left Ventricular Ejection Fraction |
| LVEF | Left Ventricular Ejection Fraction - a heart function test |
| LVF | Left Ventricular Failure |
| LVH | Left Ventricular Hypertrophy |
| LVH | Left Anterior Hemiblock |
| LVIS | Low Velocity Intense Source |
| LVN | Licensed Vocational Nurse |
| LVN | Lateral Ventricular Nerve |
| LVO | Left Ventricular Opacification |
| LVOR | Linear Vestibulo- Ocular Reflex |
| LVP | Large Volume Paracentesis |
| LVPD | La Verne Police Department |
| LVPD | Las Vegas Police Department |
| LVR | Laboratory of Vision Research, RUTGERS University |
| LVS | List View Style |
| LVSF | Left Ventricular Shortening Fraction - a heart function test |
| LW | Load Word |
| LW | Late Write |
| LW | Local Write |