noun, verb, nerved, nerv⋅ing.| 1. | one or more bundles of fibers forming part of a system that conveys impulses of sensation, motion, etc., between the brain or spinal cord and other parts of the body. |
| 2. | a sinew or tendon: to strain every nerve. |
| 3. | firmness or courage under trying circumstances: an assignment requiring nerve. |
| 4. | boldness; audacity; impudence; impertinence: He had the nerve to say that? |
| 5. | nerves, nervousness: an attack of nerves. |
| 6. | strength, vigor, or energy: a test of nerve and stamina. |
| 7. | (not in technical use) pulp tissue of a tooth. |
| 8. | Botany. a vein, as in a leaf. |
| 9. | a line, or one of a system of lines, extending across something. |
| 10. | to give strength, vigor, or courage to: Encouragement had nerved him for the struggle. |
| 11. | get on one's nerves, to irritate, annoy, or provoke one: Boisterous children get on my nerves. |

A bundle of fibers composed of neurons that connects the body parts and organs to the central nervous system and carries impulses from one part of the body to another.
nerve (nûrv)
n.
Any of the cordlike bundles of nervous tissue made up of myelinated or unmyelinated nerve fibers and held together by a connective tissue sheath through which sensory stimuli and motor impulses pass between the brain or other parts of the central nervous system and the eyes, glands, muscles, and other parts of the body.
The sensitive tissue in the pulp of a tooth.
nerves Nervous agitation caused by fear, anxiety, or stress.
nerve
see bundle of nerves; get on someone's nerves; get up (one's nerve); have a nerve; lose one's nerve; of all the nerve; war of nerves.