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seeing

[see-ing] /ˈsi ɪŋ/
conjunction
1.
in view of the fact that; considering; inasmuch as.
noun
2.
the act of a person who sees.
3.
the sense of sight.
Origin
1495-1505
1495-1505; see1 + -ing2
Related forms
unseeing, adjective
unseeingly, adverb
unseeingness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for unseeing

unseeing

/ʌnˈsiːɪŋ/
adjective
1.
with one's eyes open but not noticing or perceiving anything

seeing

/ˈsiːɪŋ/
noun
1.
the sense or faculty of sight; vision
2.
(astronomy) the quality of the observing conditions (especially the turbulence of the atmosphere) during an astronomical observation
conjunction
3.
(subordinating) often foll by that. in light of the fact (that); inasmuch as; since
Usage note
The use of seeing as how as in seeing as (how) the bus is always late, I don't need to hurry is generally thought to be incorrect or non-standard
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for unseeing

seeing

adj.

c.1300, present participle adjective from see (v.). Seeing Eye dog first attested 1929, American English, trademarked by Seeing Eye Inc. of New Jersey.

Online Etymology Dictionary, © 2010 Douglas Harper
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Encyclopedia Article for unseeing

seeing

in astronomy, sharpness of a telescopic image. Seeing is dependent upon the degree of turbulence in the Earth's atmosphere for a given telescope. Scintillation, the "twinkling" of stars to the unaided eye, is a commonly known result of turbulence in the higher reaches of the atmosphere. Poor seeing in telescopes is more a result of turbulence in the lower atmosphere. This turbulence sets a limit on the features that a telescope can resolve.

Learn more about seeing with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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9
13
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