Princeton's WordNet(4.75 / 4 votes)Rate this definition: 1  light, illumination(noun) a condition of spiritual awareness; divine illumination. 2  illumination(noun) the degree of visibility of your environment. 3  clarification, elucidation, illumination(noun) an interpretation that removes obstacles to understanding.
The injection for a brachial plexus block is in the. side of your neck, or in your armpit, or close to your collar bone. Other. nerves can be blocked near the elbow, or in the forearm, wrist or hand. Sedation is commonly given before the injection is done.
A surgical nerve block is performed by a neurosurgeon and involves surgically removing or selectively damaging certain areas of the nerve. Like a neurolytic block, a surgical nerve block is usually reserved for severe pain cases, such as cancer pain or trigeminal neuralgia. Most surgical nerve blocks are permanent.