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- Demyelinating: If a person has a demyelinating neuropathy, there is a problem with the myelin that protects the axon. This is defined as nerve conduction velocities less than 38 meters per second in the median or ulnar nerves (both found in the arms).
- DNA: The main unit of heredity. The instructions for the inner workings of the body are found within the DNA.
- Dominant: In a dominant condition, only one mutation is needed for a person to have a condition. For an autosomal dominant condition, there is a fifty percent chance of passing on the condition in each pregnancy, and a fifty percent chance of not passing on the condition.
