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visibility |
Also found in: Dictionary/thesaurus, Medical, Financial, Acronyms, Wikipedia, Hutchinson | 0.04 sec. |
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visibility [‚viz·ə′bil·əd·ē] (meteorology) In weather observing practice, the greatest distance in a given direction at which it is just possible to see and identify with the unaided eye, in the daytime, a prominent dark object against the sky at the horizon and, at nighttime, a known, preferably unfocused, moderately intense light source. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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You would say, would you not, that the sun is only the author of visibility in all visible things, but of generation and nourishment and growth, though he himself is not generation? Then he remembered that it was about the time of the new moon, and if that tricksy orb was in one of its stages of visibility it had set long before. Under these conditions, as regards the visibility of the details of the disc, the travelers were farther from the moon than are the inhabitants of earth with their powerful telescopes. |
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