sensible horizon
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sensible horizon
n.
The plane that intersects an observer's position and is perpendicular to the line formed by the observer's nadir and zenith.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
sensible horizon
n
(Astronomy) See horizon2a
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ho•ri•zon
(həˈraɪ zən)n.
1. the line or circle that forms the apparent boundary between earth and sky.
2.
a. the small circle of the celestial sphere whose plane is tangent to the earth at the position of a given observer, or the plane of such a circle (sensible horizon).
b. the great circle of the celestial sphere whose plane passes through the center of the earth and is parallel to the sensible horizon of a given position, or the plane of such a circle (celestial horizon).
3. the limit or range of perception, knowledge, or the like.
4. Usu., horizons. the scope of a person's interest, education, understanding, etc.
5. a thin, distinctive geological stratum useful for stratigraphic correlation.
6. any of the series of distinctive layers found in a vertical cross section of any well-developed soil.
[1540–50; < Latin horizōn < Greek horízōn(kýklos) bounding (circle), present participle of horízein to bound, limit]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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| Noun | 1. |  sensible horizon - the line at which the sky and Earth appear to meetlinear perspective, perspective - the appearance of things relative to one another as determined by their distance from the viewer line - a spatial location defined by a real or imaginary unidimensional extent |
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