| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
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| ND | Doctor of Naturopathy; nasal deformity; natural death; Naval Dispensary; neonatal death; neoplastic ... |
| NEP | negative expiratory pressure; nephrology; neutral endopeptidase; no evidence of pathology |
| neut | neuter, neutral; neutrophil |
| NF | nafcillin; National Formulary; nephritic factor; neurofibromatosis; neurofilament; neutral fraction;... |
| neutral stain | <technique> A compound of an acid stain and a basic stain, such as the eosinate of methylene blue, in which the anion and cation each contains a chromophore group. Synonym: salt dye. (05 Mar 2000) |
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| neutral stimulus | When paired with the unconditioned stimulus in simultaneous presentation to an organism, capable of eliciting a given response. (05 Mar 2000) |
| neutral zone | In dentistry, the potential space between the lips and cheeks on one side and the tongue on the other; natural or artificial teeth in this zone are subject to equal and opposite forces from the surrounding musculature. (05 Mar 2000) |
| neutral-density filter | <equipment> A light-absorbing filter whose absorption spectrum is moderately flat. Depending on the type, the absorption curve is flat primarily in the visible spectral range, or may extend to varying degrees beyond the visible range. For video microscopy, this is an important point since the absorbance may or may not extend into the near-infrared region where the sensitivity of many video image pickup devices is very high. (05 Aug 1998) |
| neutralisation | An act or process of neutralising. (18 Nov 1997) |
| neutralise | To effect neutralization. (05 Mar 2000) |
| neutrality | 1. The state or quality of being neutral; the condition of being unengaged in contests between others; state of taking no part on either side; indifference. "Men who possess a state of neutrality in times of public danger, desert the interest of their fellow subjects." (Addison) 2. Indifference in quality; a state neither very good nor bad. 3. <chemistry> The quality or state of being neutral. See Neutral. 4. The condition of a nation or government which refrains from taking part, directly or indirectly, in a war between other powers. 5. Those who are neutral; a combination of neutral powers or states. Armed neutrality, the condition of a neutral power, in time of war, which holds itself ready to resist by force any aggression of either belligerent. Origin: Cf. F. Neutralite. Source: Websters Dictionary (01 Mar 1998) |
| neutralization | 1. The act or process of neutralising, or the state of being neutralized. 2. <chemistry> The act or process by which an acid and a base are combined in such proportions that the resulting compound is neutral. See Neutral. Origin: Cf. F. Neutralisation. Source: Websters Dictionary (01 Mar 1998) |
| neutralization plate | A metal plate used for the internal fixation of a long bone fracture to neutralise the forces producing displacement. (05 Mar 2000) |
| neutralization test | A test to determine the antimicrobial activity of a serum by inoculating a susceptible animal with a mixture of the serum and the virus or other microbe being tested. Synonym: neutralization test. (05 Mar 2000) |
| neutralization tests | Titration of an antiserum by testing a series of dilutions of virus or immune serum to a given end-point, which is generally the dilution at which tissue cultures inoculated with the serum-virus mixtures demonstrate cytopathology (cpe) or the dilution at which 50% of test animals injected with serum-virus mixtures show infectivity (id50) or die (ld50). (12 Dec 1998) |
| neutralize | 1. To render neutral; to reduce to a state of neutrality. "So here I am neutralized again." (Sir W. Scott) 2. <chemistry> To render inert or imperceptible the peculiar affinities of, as a chemical substance; to destroy the effect of; as, to neutralize an acid with a base. 3. To destroy the peculiar or opposite dispositions of; to reduce to a state of indifference inefficience; to counteract; as, to neutralize parties in government; to neutralize efforts, opposition, etc. "Counter citations that neutralize each other." (E. Everett) Origin: Cf. F. Neutraliser. Source: Websters Dictionary (01 Mar 1998) |
| neutralizing antibody | A form of antibody that reacts with an infectious agent (usually a virus) and destroys or inhibits its infectivity and virulence; may be demonstrated by means of mixing serum with the suspension of infectious agent, and then injecting the mixture into animals or cell cultures that are susceptible to the agent in question. (05 Mar 2000) |
| neutral red |
a basic red fluorochrome dye used as a pH indicator with a range of 6.8 (red) to 8 (yellow) and as a stain in the supravital staining of blood.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| neutralization equivalent |
the equivalent weight of an acid as determined by neutralization with a base regarded as a primary standard.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| neutralism |
Neutralism describes the relationship (or lack thereof) between two species which do not interact with or affect each other. It is used in ecology to describe biological interactions when the population density of one species has absolutely no effect whatsoever on the other. Neutralism is extremely unlikely and impossible to prove. ...
Ãâó: en.wikipedia.org/wiki/Neutralism
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| neutral mutation |
A mutation that changes the nucleotide sequence of a gene but has negligible effect on the fitness of the organism.
Ãâó: www.fao.org/docrep/003/X3910E/X3910E17.htm
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| neutralize |
To change from acidic or alkaline to a neutral pH.
Ãâó: www.peteducation.com/dict_alpha_listing.cfm
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| neutral | a chemical reaction in which an acid and a base interact with the formation of a salt |
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| neutral | a chemical reaction in which an acid and a base interact with the formation of a salt |
| neutral | make chemically neutral |
| neutral | make ineffective by counterbalancing the effect of |
| neutral | make incapable of military action |
| neutral | made neutral in some respect |
| neutral | a policy of neutrality or nonalignment in international affairs |
| neutral | an advocate of neutrality in international affairs |
| neutral | nonparticipation in a dispute or war |
| neutral | pH value of 7 |
| neutral | tolerance attributable to a lack of involvement |
| neutral | action intended to nullify the effects of some previous action |
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