a. (Bot.) Having the nerves radiating from the base; -- said of leaves. [ 1913 Webster ]

a. [ L. bis twice + nervus sinew, nerve. ] 1. (Bot.) Two-nerved; -- applied to leaves which have two longitudinal ribs or nerves. [ 1913 Webster ]

2. (Zool.) Having only two nerves, as the wings of some insects. [ 1913 Webster ]

n. the portion of the vertebrate nervous system consisting of the brain and spinal cord; -- abbreviated CNS.
Syn. -- CNS. [ WordNet 1.5 ]

a. (Bot.) Having the nerves spring from the midrib. [ 1913 Webster ]

a. [ L. curvus bent + E. nerve. ] (Bot.) Having the ribs or the veins of the leaves curved; -- called also curvinervate and curve-veined. [ 1913 Webster ]

v. t. [ imp. & p. p. Enervated p. pr. & vb. n. Enervating. ] [ L. enervatus, p. p. of enervare, fr. enervis nerveless, weak; e out + nervus nerve. See Nerve. ] To deprive of nerve, force, strength, or courage; to render feeble or impotent; to make effeminate; to impair the moral powers of. [ 1913 Webster ]

A man . . . enervated by licentiousness. Macaulay. [ 1913 Webster ]

And rhyme began t' enervate poetry. Dryden.

Syn. -- To weaken; enfeeble; unnerve; debilitate. [ 1913 Webster ]

a. [ L. enervatus, p. p. ] Weakened; weak; without strength of force. Pope. [ 1913 Webster ]

adj. lacking strength or vigor.
Syn. -- adynamic, asthenic, debilitated. [ WordNet 1.5 ]

adj. causing the loss of strength or vigor.
Syn. -- debilitative, enfeebling, weakening. [ WordNet 1.5 ]

n. [ L. enervatio: cf. F. énervation. ] 1. The act of weakening, or reducing strength. [ 1913 Webster ]

2. The state of being weakened; effeminacy. Bacon. [ 1913 Webster ]

a. Having power, or a tendency, to enervate; weakening. [ R. ] [ 1913 Webster ]

v. t. [ Cf. F. énerver. See Enervate. ] To weaken; to enervate. [ Obs. ] Milton. [ 1913 Webster ]

a. [ L. enervis, enervus. ] Lacking nerve or force; enervated. [ R. ] [ 1913 Webster ]

a. (Bot. & Zool.) Having the nerves or veins arranged in a radiating manner; -- said of certain leaves, and of the wings of some insects. [ 1913 Webster ]

a. [ L. flabellum a fan + E. nerve. ] (Bot.) Having many nerves diverging radiately from the base; -- said of a leaf. [ 1913 Webster ]

v. t. [ See Innerve. ] (Anat.) To supply with nerves; as, the heart is innervated by pneumogastric and sympathetic branches. [ 1913 Webster ]

n. [ Cf. F. innervation. ] 1. The act of innerving or stimulating. [ 1913 Webster ]

2. (Physiol.) Special activity excited in any part of the nervous system or in any organ of sense or motion; the nervous influence necessary for the maintenance of life, and the functions of the various organs. [ 1913 Webster ]

3. (Anat.) The distribution of nerves in an animal, or to any of its parts. [ 1913 Webster ]

v. t. [ imp. & p. p. Innerved p. pr. & vb. n. Innerving. ] [ Pref. in- in + nerve. ] To give nervous energy or power to; to give increased energy, force, or courage to; to invigorate; to stimulate. [ 1913 Webster ]

n. [ L. ] (Rom. Myth.) The goddess of wisdom, of war, of the arts and sciences, of poetry, and of spinning and weaving; -- identified with the Grecian Pallas Athene. [ 1913 Webster ]

a. (Bot.) Nerved. [ 1913 Webster ]

n. The arrangement of nerves and veins, especially those of leaves; neuration. [ 1913 Webster ]

The outlines of the fronds of ferns, and their nervation, are frail characters if employed alone for the determination of existing genera. J. D. Hooker. [ 1913 Webster ]

v. t. [ imp. & p. p. Nerved p. pr. & vb. n. Nerving. ] To give strength or vigor to; to supply with force; as, fear nerved his arm. [ 1913 Webster ]

n. [ OE. nerfe, F. nerf, L. nervus, akin to Gr. ney^ron sinew, nerve; cf. neyra` string, bowstring; perh. akin to E. needle. Cf. Neuralgia. ] 1. (Anat.) One of the whitish and elastic bundles of fibers, with the accompanying tissues, which transmit nervous impulses between nerve centers and various parts of the animal body. [ 1913 Webster ]

☞ An ordinary nerve is made up of several bundles of nerve fibers, each bundle inclosed in a special sheath (the perineurium) and all bound together in a connective tissue sheath and framework (the epineurium) containing blood vessels and lymphatics. [ 1913 Webster ]

2. A sinew or a tendon. Pope. [ 1913 Webster ]

3. Physical force or steadiness; muscular power and control; constitutional vigor. [ 1913 Webster ]

he led me on to mightiest deeds,
Above the nerve of mortal arm. Milton. [ 1913 Webster ]

4. Steadiness and firmness of mind; self-command in personal danger, or under suffering; unshaken courage and endurance; coolness; pluck; resolution. [ 1913 Webster ]

5. Audacity; assurance. [ Slang ] [ 1913 Webster ]

6. (Bot.) One of the principal fibrovascular bundles or ribs of a leaf, especially when these extend straight from the base or the midrib of the leaf. [ 1913 Webster ]

7. (Zool.) One of the nervures, or veins, in the wings of insects. [ 1913 Webster ]

Nerve cell (Anat.), a neuron, one of the nucleated cells with which nerve fibers are connected; a ganglion cell is one type of nerve cell. --
Nerve fiber (Anat.), one of the fibers of which nerves are made up. These fibers are either medullated or nonmedullated. In both kinds the essential part is the translucent threadlike axis cylinder which is continuous the whole length of the fiber. --
Nerve stretching (Med.), the operation of stretching a nerve in order to remedy diseases such as tetanus, which are supposed to be influenced by the condition of the nerve or its connections. [ 1913 Webster ]

a. 1. Having nerves of a special character; as, weak-nerved. [ 1913 Webster ]

2. (Bot.) Having nerves, or simple and parallel ribs or veins. Gray. [ 1913 Webster ]

a. 1. Destitute of nerves. [ 1913 Webster ]

2. Destitute of strength or of courage; wanting vigor; weak; powerless. [ 1913 Webster ]

A kingless people for a nerveless state. Byron. [ 1913 Webster ]

Awaking, all nerveless, from an ugly dream. Hawthorne. [ 1913 Webster ]

n. The state of being nerveless. [ 1913 Webster ]

adj. Extremely irritating to the nerves; stressful; trying; as, nerve-wracking noise. [ Also spelled nerve-wracking. ]
Syn. -- stressful, trying. [ WordNet 1.5 ]

a. Affected by a tremor, or by a nervous disease; weakened; overcome by some violent influence or sensation; shocked. [ 1913 Webster ]

adj. Same as nerve-racking.
Syn. -- stressful, trying. [ WordNet 1.5 ]

n. [ Nerve + motion. ] (Physiol.) The movement caused in the sensory organs by external agents and transmitted to the muscles by the nerves. Dunglison. [ 1913 Webster ]

n. [ Nerve + motor. ] (Physiol.) Any agent capable of causing nervimotion. Dunglison. [ 1913 Webster ]

pos>a. [ L. nervinus made of sinews: cf.F. nervin. See Nerve. ] (Med.) Having the quality of acting upon or affecting the nerves; quieting nervous excitement. -- n. A nervine agent. [ 1913 Webster ]

a. [ Nerve + muscular. ] (Physiol.) Of or pertaining to both nerves and muscles; of the nature of nerves and muscles; as, nervomuscular energy. [ 1913 Webster ]

a. [ See Nervous. ] (Bot.) Same as Nerved. [ 1913 Webster ]

n. [ L. nervositas strength. ] Nervousness. [ R. ] [ 1913 Webster ]

a. [ L. nervosus sinewy, vigorous: cf. F. nerveux. See Nerve. ] 1. Possessing nerve; sinewy; strong; vigorous. “Nervous arms.” Pope. [ 1913 Webster ]

2. Possessing or manifesting vigor of mind; characterized by strength in sentiment or style; forcible; spirited; as, a nervous writer. [ 1913 Webster ]

3. Of or pertaining to the nerves; seated in the nerves; as, nervous excitement; a nervous fever. [ 1913 Webster ]

4. Having the nerves weak, diseased, or easily excited; subject to, or suffering from, undue excitement of the nerves; easily agitated or annoyed. [ 1913 Webster ]

Poor, weak, nervous creatures. Cheyne. [ 1913 Webster ]

5. Sensitive; excitable; timid. [ 1913 Webster ]

6. Apprehensive; as, a child nervous about his mother's reaction to his bad report card. [ PJC ]

Our aristocratic class does not firmly protest against the unfair treatment of Irish Catholics, because it is nervous about the land. M. Arnold. [ 1913 Webster ]

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 coordinating 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. [ 1913 Webster ]

adv. In a nervous manner. [ 1913 Webster ]

n. State or quality of being nervous. [ 1913 Webster ]

n. [ F. See Nerve. ] 1. (Bot.) One of the nerves of leaves. [ 1913 Webster ]

2. (Zool.) One of the chitinous supports, or veins, in the wings of insects. [ 1913 Webster ]

n. Any bundle of nerve fibers running to various organs and tissues of the body.
Syn. -- nerve. [ WordNet 1.5 ]

a. [ Compar. nervier superl. nerviest. ] 1. Strong; sinewy. “His nervy knees.” Keats. [ 1913 Webster ]

2. Offensively bold or presumptuous; insolent; cheeky; pushy. [ PJC ]

3. Exhibiting courage or daring; bold; plucky. [ PJC ]

4. Nervous{ 6 }; apprehensive; edgy{ 1 }. [ PJC ]

a. [ L. penna feather + E. nerve. ] Pinnately veined or nerved. [ 1913 Webster ]

a. [ Quinque- + nerve. ] (Bot.) Having five nerves; -- said of a leaf with five nearly equal nerves or ribs rising from the end of the petiole. [ 1913 Webster ]

{ } a. (Bot.) The same as Quinquenerved. [ 1913 Webster ]

a. [ Recti- + nerve. ] (Bot.) Having the veins or nerves straight; -- said of leaves. [ 1913 Webster ]

v. t. To nerve again; to give new vigor to; to reinvigorate. [ 1913 Webster ]

a. [ L. rete a net + E. nerve. ] (Bot.) Having reticulated veins. [ 1913 Webster ]

a. Having three nerves. [ 1913 Webster ]

Three-nerved leaf (Bot.), a leaf having three distinct and prominent ribs, or nerves, extending from the base. [ 1913 Webster ]

a. [ NL. trinervatus; pref. tri- + L. nervus nerve. ] (Bot.) Having three ribs or nerves extending unbranched from the base to the apex; -- said of a leaf. Gray. [ 1913 Webster ]

{ } a. [ Pref. tri- + nerve. ] (Bot.) Same as Trinervate. [ 1913 Webster ]