* Left Rib - This is the most common meaning of LRB in the medical field.
* Long Range Bombardment - This is a military term referring to the use of long-range artillery or missiles.
* Low Resolution Band - This term is used in the field of remote sensing to refer to a spectral band with low resolution.
* Local Response Normalization - This is a technique used in deep learning to improve the performance of neural networks.
* Lower Respiratory Block - This is a medical term used to describe an obstruction of the lower respiratory tract.
To determine the correct full form of LRB, you need to consider the context in which it is used.