4. Having the nerves weak, diseased, or easily excited; subject to, or suffering from, undue excitement of the nerves; easily agitated or annoyed. Poor, weak, nervous creatures. Cheyne.

5. Sensitive; excitable; timid. Our aristocratic class does not firmly protest against the unfair treatment of Irish Catholics, because it is nervous about the land. M. Arnold. Nervous fever (Med.), a low form of fever characterized by great disturbance of the nervous system, as evinced by delirium, or stupor, disordered sensibility, etc. — Nervous system (Anat.), the specialized coördinating apparatus which endows animals with sensation and volition. In vertebrates it is often divided into three systems: the central, brain and spinal cord; the peripheral, cranial and spinal nerves; and the sympathetic. See Brain, Nerve, Spinal cord, under Spinal, and Sympathetic system, under Sympathetic, and Illust. in Appendix. — Nervous temperament, a condition of body characterized by a general predominance of mental manifestations. Mayne.

NERVOUSLY
Nerv"ous*ly, adv.

Defn: In a nervous manner.

NERVOUSNESS
Nerv"ous*ness, n.

Defn: State or quality of being nervous.

NERVURE
Nerv"ure, n. Etym: [F. See Nerve.]

1. (Bot.)

Defn: One of the nerves of leaves.

2. (Zoöl.)