negative

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negative:

see photographic processingphotographic processing,
set of procedures by which the latent, or invisible, image produced when a photographic film is exposed to light is made into a permanent visible image.
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Negative

 

in black-and-white photography and cinematography, an image formed by grains of metallic silver in which the photographic blackening is inverse to the brightness of details of the object being photographed. The brighter the detail, the greater its blackening in the reproduced image. In color photography, the image of the object being photographed is formed by the pigments whose colors are complementary to the colors of the parts of the object (yellow is complementary to blue, purple to green, light blue to red, and so on).

A negative is an intermediate image of the object in a two-stage process; it is used to obtain a positive. In some cases a negative can be the final image—for example, in recording spectra for spectral analysis. The quality of a negative is judged by its optical density, its degree of contrast, and its graininess. For color negatives the color balance (matching of colored images) is also important. A negative is considered normal if the positives printed from it have a realistic appearance and show easily discernible details.


Negative

 

in grammar, a word or affix indicating the absence of an object (u menia net knigi,“I do not have the book”), of qualitative attributes of an object (etot chelovek ne star,“this person is not old”), or of actions or states (ia ne pishu,“I am not writing”; ia ne spliu,“I am not sleeping”). A word-sentence expressing disagreement with an utterance (net! “no!”) is also a negative.

Languages express negatives in various ways. Separate words are used in the case of the Russian net and ne, the German nein and nicht, the English “no” and “not,” and the French non and ne ‖ pas. Word-forming affixes may also be used, as the nein the Russian nebol’shoi (“not large,” “small”), the bez- in the Russian bezdetnyi (“childless”), the un- in the German unbekannt (“unknown”), the “un-” in the English “unpleasant,” or the “in-” in the English “invisible.” Negatives may also be expressed by morphological forms in inflection. Negative affixes are used in the Turkic languages, as in the Tatar ëshlim (“I am working”), contrasted to ëshlämim (“I am not working”). Negative verbs are used in certain Finno-Ugric languages, as exemplified by the Zyrian me og mung (“I am not going”). English uses a negative analytical verb form in a sentence such as “I do not see.”

negative

[′neg·əd·iv]
(electricity)
Having a negative charge.
(graphic arts)
The image on film in which the dark tones of the original appear transparent, and the light tones appear black and opaque. Also known as reversed image.

negative

As used in air traffic control terminology, it means, “No,” or “Permission not granted,” or “That is not correct.”

negative

1. Biology indicating movement or growth away from a particular stimulus
2. Med (of the results of a diagnostic test) indicating absence of the disease or condition for which the test was made
3. another word for minus
4. Physics
a. (of an electric charge) having the same polarity as the charge of an electron
b. (of a body, system, ion, etc.) having a negative electric charge; having an excess of electrons
c. (of a point in an electric circuit) having a lower electrical potential than some other point with an assigned zero potential
5. short for electronegative
6. of or relating to a photographic negative
7. Logic (of a categorial proposition) denying the satisfaction by the subject of the predicate, as in some men are irrational; no pigs have wings
8. Astrology of, relating to, or governed by the signs of the zodiac of the earth and water classifications, which are thought to be associated with a receptive passive nature
9. short for Rh negative
10. Photog a piece of photographic film or a plate, previously exposed and developed, showing an image that, in black-and-white photography, has a reversal of tones. In colour photography the image is in complementary colours to the subject so that blue sky appears yellow, green grass appears purple, etc.
11. Physics a negative object, such as a terminal or a plate in a voltaic cell
12. a quantity less than zero or a quantity to be subtracted
13. Logic a negative proposition
References in periodicals archive ?
In relation to this, we wanted to unravel one of the mechanisms driving such potentially positive effects of negativity.
Z-test for proportions was performed on Social statistics calculator using proportions of false negativity among all negative samples in both genders.
Negativity from concerned customers or community members is what most often warrants a response.
Body product disgusts in particular showed an initial defensive response pattern: Instead of eliciting immediate attention, the onset of body product disgusts elicited sharp increases in negativity and arousal, and an acceleration of heart rate, indicating that the content was at first too disgusting to pay attention to.
To examine the effects of alcohol use and bipolar disorder on mismatch negativity, EEG with auditory stimuli investigators performed on 42 bipolar disorder patients and 34 control subjects aged 16-30 years, reported Kate M.
It would appear that any negativity comes from the notices of gloom and doom from the airport itself.
A study published in the current issue of Biological Psychiatry provides evidence that mismatch negativity (MMN), an event-related brain potential component derived from scalp electroencephalography (EEG) recordings, may be such a biomarker.
However, he argues, negativity and melancholia are integral parts of any revolution--as he seeks to demonstrate with a comparative analysis of the French Revolution--even if the post-Soviet transformation, as a negation of a negation, resulted in the unprecedented interiorization of negativity by society which led to collective melancholia.
How to short-circuit negativity and keep morale high.
Researchers used linguistic algorithms to measure positivity, negativity and uncertainty during the Q&A portion of each call.
Now, Rousselle seeks to bring this process to fruition by recovering the anarchic negativity which has explicitly or implicitly driven anarchist discussions of ethics, universalism and the subject.
The Parkhead boss also hit out at the negativity surrounding his team and told the critics to enjoy Celtic's stars as they may soon be gone.