neuroepithelial (nu"roepitheʻlial)

[ hillocks or neuromasts. Preferably neurepithelial. neurogliar (nu-rogʻli-är), a. IMG:content-1332.png:[blocks in formation] neuromyology (nūrō-mi-ol'ō-ji), n. [ νεῦρον , nerve, + μῦς , muscle, + -λογία, ology . Cf. myology.] A system of cla ifying and naming muscles with reference to the nerves; myology based upon neurology. Neurology is the key to myology; and a neuro - myology is practicable. neuron (nū'ron), n.; pl. neura (-rä). [NL., νεῦρον , nerve: see nerve .] 1. The cerebro- spinal axis in its entirety; the whole of the encephalon and myelon, or brain and spinal cord, considered as one.-2. In entom ., a nerv- ure of an insect's wing; a vein or costa. neuronosos (nu-ron'ō-sos), n . [NL., νεύρον , nerve, + νόσος, disease.] Any disease of the nervous system. Also neuronosus . neuropath (nūrō-path), n. [ neuropath -y.] 1. In pathol ., one who a igns to the nervous system an exce ive if not exclusive responsi- bility for disease. - 2. A person of a nervous organization liable to or exhibiting nervous dis- neuropathic (nü-ro-path'ik), a. [ neuropath -y +-ic.] Of or pertaining to neuropathy. neuropathical (nu-rō-path'i-kal), a. [ neuro- pathic + -al.] Same as neuropathic. neuropathically (nu-ro-path'i-kal-i), adv . In a neuropathic manner. neuropathological (nu-ro-path-o-loj'i-kal), a . [ neuropatholog -y + -ic-al.] Pertaining to a diseased condition of the nervous system or neuropathologist (nūrō-pa-thol'ō-jist), n. [ -ist .] One who is skilled in neuropathology. neuropathology (nūrō-pa-thol'ō-ji), n. [ νεύρον , nerve, + πάθος , suffering, + -λογία, γειν , speak: see -ology . Cf. pathology .] The sum of human knowledge concerning the dis- eases of the nervous system. specialized as a sensitive surface or area. It may be free on the general surface of the integument, or more or le covered in a special sac or inversion of the epidermis, or even entirely withdrawn from the epidermis into canals of the corium, hence called neuromas tic canals. These canals may be strengthened by bones or scales de- veloped about the site of the neuro-epithelial tract. Neuneurophysiology. romasts are found in all fishes and aquatic amphibians, neurophysiology (nu-ro-fiz-i-ol'ō-ji), n. [ neuropathy (nu-ropa-thi), n. [ νεύρον , nerve, + -παθεια , πάθος , suffering.] In pathol ., a general term for disease of the nervous sys- tem. neurophysiological (nū-rō-fiz i-o-loj'i-kal), a . [ neurophysiolog -y + -ic - al . ] Pertaining to νεύρον, nerve, + φυσιολογία , physiology.] Physi- ology of the nervous system. neuropodial (nu-ro-pod i-al), a. [ dia (-a). [NL., Gr. νεύρον , nerve, + πούς (ποδ-) = E. foot .] One of the series of ventral or in- neuropore (nu'rō-por), n . [ νεῦρον , nerve, + πόρος, pore.] An orifice of communication between the neural canal and the exterior in the embryos of some animals. An anterior neuro- pore, where the brain remained last in connection with the epidermis, may correspond to the pineal body. In the lancelet it is a permanent opening. A posterior neuro- pore may be a neuranal orifice, or on closure of that orifice may be diverted into a neurenteric canal. neurorthopterous (nu-rôr-thop'te-rus), a . or pertaining to the Neurorthoptera . neurosal (nu-rō'sal), a . [ neurosis + -al .] Of the nature of or pertaining to a neurosis; origi- nating in the nervous system: as, neurosal dis- νεύρον , nerve, + E. psychology .] Neurology in- cluding psychology. neuropsychopathic (nu-rō-si-ko-path'ik), a . [ νεῦρον , nerve, + ψυχή , soul, + παθός , suffer- ing: see pathic .] Pertaining to disease of the nervous system, including those parts of it sub- serving psychic functions. - Neuropsychopathic constitution, a permanent condition of irritable weak- ne of the nerve-centers, especially the higher or psych i- cal ones, exhibiting itself in irregular sleep, exaggerated headache, susceptibility to alcohol, diminished or exag- gerated sexual instinct, self-consciousne , ficklene in emotions, lack of determination, insane temperament or diathesis. neuropter (nu-rop'ter), n. [NL.] A neuropter- ous insect; a member of the order Neuroptera . Neuroptera (nu-rop'te-rä), n . pl . [NL., neut. pl. of neuropterus , νεύρον , nerve, + πτερόν , a wing.] An order of the cla Insect a , founded by Linnæus in 1748. It was originally composed of the genera Libellula , Ephemera, Phryganea , Hemerobi- us, Myrmeleon, Panorpa , and Raphidia ( Rhaphidia ), the winged termites being included in He me rob i us . The group thus constituted has suffered many changes, and entomolo gists are still far from agreed upon its proper definition. Fabric i us founded a distinct order Odonata for the Linnean Libellulæ or dragon-flies. Kirby separated the Linnean Phryganee or caddis-flies under the ordinal name Tri- choptera. Erichson founded the order Pseudo neuroptera for those Linnean neuropters whose metamorphosis is in- IMG:content-1333.png:[blocks in formation] Shall we, that in the battle sate as neuters , Serve him that's overcome? Fletcher ( and another ), False One, i. 1. Damn'd neuters , in their middle way of steering, Are neither fish, nor flesh, nor good red herring. Dryden, Epilogue to the Duke of Guise, 1. 39. 2. An animal of neither sex, and incapable of That outward form is but a neurospast , propagation; one of the imperfectly developed Dr. H. More, Psych a than asia, I. ii. 34. females of certain social insects, as ants and neurospastict (nū-rō-spas'tik), a . [ neurospast +-ic.] Of or pertaining to or resembling a neurospast. neurotherapeutics (nū-rō-ther-a-pu'tiks), n. [ νεύρον , nerve, + E. therapeutics .] Therapeu- tics of nervous disease. neurotherapy (nu-rō-thera-pi), n. [ νεῦ- ρον , nerve, + θεραπεία , θεραπεία , medical medic a treatment.] Same as neurotherapeutics . neurotic (nū-rot'ik), a. and n. [ neurotic disease. All of us, in certain neurotic crises, hear music or see pictures or receive other striking and mysterious impres- sions. New Princeton Rev. , II. 158. 2. Prone to the development of neuroses. neut. An abbreviation of neuter . neuter (nū'tér), a . and n . [ neuter , neither; in grammatical use, neuter, tr. Gr. οὐδέτερος (neutrum genus , tr. Gr. γένος οὐδέτερον , neuter gender); ne , not (see ne), + uter , either, one of two.] I. a. 1. Neither the one thing nor the other; not adhering to either party; taking no part with either side, as in a contention or dis- cu ion; neutral. Berners, tr. of Froi art's Chron., I. cclii. I cannot mend it, I must needs confe ;.. But since I cannot, be it known to you bees, which perform all the labors of the com- munity; a worker. See cuts under bee , Atta , and Termes.-3. In bot . , a plant which has neither stamens nor pistils. See cut under neutral.-4. In gram., a noun of the neuter gender. Abbreviated n . and neut . neutral (nu'tral), a . and n. [= Sp. Pg. neutral = It. neutrale , neutral is , neuter, neuter , neither: see neuter .] I. a. 1. In the condition of one who refrains from taking sides in a contest or dispute; taking no active part with either of two contestants or belligerents; not engaged on or interfering with either side. Who can be wise, amazed, temperate and furious, Loyal and neutral , in a moment? No man. amity to both the belligerent parties, or, negatively, is a non host is,. one which sides with neither party in a Woolsey , Introd. to Inter. Law, § 155. 2. Belonging to a neutral state: as, neutral ships; a neutral flag.-3. Neither one thing nor the other; intermediate; indifferent; me- diocre. Some things good, and some things ill do seem, And neutral some, in her fantastic eye. Sir J. Davies , Immortality of the Soul, xx. I was resolved to a ume a look perfectly neutral :. a complete virginity of face, uncontaminated with the smallest symptom of meaning. 4. In chem., exhibiting neither acid nor alka- line qualities: as, neutral salts.-5. In bot., sexle ; having neither stamens nor pistils, as the ray-flowers of many Compos itæ , the mar- ginal flowers of Hydrangea , and the upper flor- ets of many gra es. See cut under Hydrangea . -6. In elect . and magnetism , not electrified; not magnetized.-7. In color , of low chroma; without positive quality of color; grayish. -Neu- tral axis, in mech . See axis1 .-Neutral blue, equi- librium. See the nouns. - Neutral line or equator of a magnet. See magnet . - Neutral salts, in chem ., salts in which all the hydrogen atoms capable of replacement by acid or basic radicals have been so replaced, as sodium sul- phate (Na2SO4), distinguished from hydrogen-sodium sul- phate (NaHSO4). Neutral salts may, however, react either acid, alkaline, or neutral with test-paper. Also called nor- mal salts.- Neutral vowel, the vowel-sound heard in such accented syllables as but , son , flood , trust , firm, earn, etc., and very widely in unaccented syllables: so called because of the virtual absence in its utterance of a positive determin- ing position of the organs, it being rather the product of intonation of their indifferent position in breathing, and the form toward which vowels exce ively slighted in pro- nunciation tend. It is instanced also by the French "mute e" (where this is not altogether silenced), by the e of many unaccented syllables in German, and so on.- Neutral zone, in bot . , in the Characeæ , the motionle hyaline band of protoplasm, entirely destitute of chloro- phyl-grains, which marks the boundary between two cur- rents of oppositely rotating protoplasm in active growing cells. Also called indifferent line. or that which occupies a neutral or indifferent position. As a painted tyrant, Pyrrhus stood, And like a neutral to his will and matter, Did nothing. Shak ., Hamlet, ii. 2. 503. Purchase but their neutrality , thy sword Will, in despite of oracles, reduce The rest of Greece. 2. Indifference in quality; a state neither very good nor very evil. [Rare.] There is no health; physicians say that we At best enjoy but a neutrality . neutralization for certain territory or waters from being made the scene of hostilities or of exclusive national maritime jurisdiction, as for the Black Sea, 1856, and for the Congo in Central Africa, 1885. (d) The condition of immunity and restriction resulting from any of such acts. Also spelled neutralisation . neutralize (nū'tral-iz), v. t.; pret. and pp. neu tralized, ppr. neutralizing. [= F. neutraliser = Sp. Pg. neutral izar = It. neutralizzare; as neu tral +-ize.] 1. To render neutral; reduce to a state of neutrality between different parties or opinions. Specifically- (a) To bestow by convention a neutral character upon (states, persons, and things which would or might otherwise bear a belligerent character); declare non-belligerent. (b) To prohibit hostili ties within the limits of, as territory or waters. The article of the treaty which referred to the Black Sea is of especial importance. "The Black Sea is neutralised ; its waters and its ports, thrown open to the mercantile marine of every nation, are formally and in perpetuity in terdicted to the flag of war of either of the Powers po e ing its coasts or of any other Power." J. M'Carthy, Hist. Own Times, xxviii. 2. In chem., to destroy or render inert or imperceptible the peculiar properties of, by chemical combination. See neutralization , 1. Ammonia neutralizes the most powerful acids, and forms a very important cla of salts. W. A. Miller , Elem. of Chem., § 369. 3. To render inoperative; invalidate; nullify; counterbalance: as, to neutralize opposition. He acts as Arch i me des would have done if he had attempted to move the earth by a lever fixed on the earth. The action and reaction neutralise each other. Macaulay, West. Reviewer's Def. of Mill. As one poison will sometimes neutralise another, when wholesome remedies would not avail, so he was restrained by a bad pa ion from quaffing his full measure of Dickens, Martin Chuzzlewit, xi. evil. Also spelled neutralise . =Syn. 3. Annul, Nullify, Annihilate, Neutralize. These words agree in meaning the bringing of a thing to nothing, causing it to cease to be absolutely, or as to some special relation. Annul represents an official or authoritative act: as, to annul an edict. (See abolish.) Nullify, to render invalid or of no avail, is more general and le often official: a law may be illegally nullified by inert resistance. To an nihilate is to reduce to nothing, and should be used only where absolute putting out of existence is meant; such expre ions as "his army was literally annihilated " are manifestly improper; "his army was annihilated " would be proper by strong hyperbole, if the army was so broken up that no parts of it were ever gathered together again. To neutralize is to bring to nothing in respect to some special relation, or to render inoperative or inefficacious in respect to certain other agencies or forces, by a contrary or counterbalancing force: as, to neutralize an acid; his efforts were neutralized by the influence of his opponent. That which is neutralized would naturally have force in itself; hence we should not speak of neutralizing a law or a command.