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polarity

   Also found in: Dictionary/thesaurus, Medical, Acronyms, Wikipedia, Hutchinson 0.07 sec.

(1) The direction of charged particles, which may determine the binary status of a bit.

(2) In micrographics, the change in the light to dark relationship of an image when copies are made. Positive polarity is dark characters on a light background; negative polarity is light characters on a dark background.
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It was perceptible, even there, in the dark old parlor, in the inevitable polarity with which his eyes were attracted towards the quivering play of sunbeams through the shadowy foliage.
House Of Seven Gables by Hawthorne, Nathaniel View in context
The magnetism which arranges tribes and races in one polarity is alone to be respected; the men are steel- filings.
Essays, Second Series by Emerson, Ralph Waldo View in context
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