principalnerve
nounUK /ˈprɪnsəpəl nɜːv/
US /ˈprɪnsəpəl nɜːrv/
A principal nerve is the main nerve in a part of the body.
The doctor said the principal nerve in his arm was hurt.
RELATED WORDS
OTHER MEANINGS
2. The most important nerve supplying a muscle or organ.
The principal nerve of the heart helps it beat steadily.
3. A key nerve pathway that carries most signals from an area.
Damage to the principal nerve can make the fingers feel numb.
4. The leading or dominant nerve in a group of nerves.
Scientists studied the principal nerve in the frog's leg.