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persistence |
Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia, Hutchinson | 0.01 sec. |
persistence(1) In a CRT, the time a phosphor dot remains illuminated after being energized. Long-persistence phosphors reduce flicker, but generate ghost-like images that linger on screen for a fraction of a second. persistence [pər′sis·təns] (electronics) A measure of the length of time that the screen of a cathode-ray tube remains luminescent after excitation is removed; ranges from 1 for short persistence to 7 for long persistence. A faint luminosity displayed by certain gases for some time after the passage of an electric discharge. (meteorology) With respect to the long-term nature of the wind at a given location, the ratio of the magnitude of the mean wind vector to the average speed of the wind without regard to direction. Also known as constancy; steadiness.
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| Then rising, he answered: "Commander of the Faithful, I crave your pardon humbly, for my persistence in beseeching your Highness to do an action which appears on the face of it to be without any meaning. The minister, with good-natured persistence, repeated his invitation. " Her "condition" was in no way apparent, and no one would have known a thing about it but for her persistence in making it the subject of conversation. |
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