See under horizon(def 2a).
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Origin of sensible horizon
First recorded in 1635–45
Definition for sensible horizon (2 of 2)
[ huh-rahy-zuhn ]
/ həˈraɪ zən /
the line or circle that forms the apparent boundary between earth and sky.
- 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).
- Also called rational horizon. 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).
the limit or range of perception, knowledge, or the like.
Usually horizons. the scope of a person's interest, education, understanding, etc.: His horizons were narrow.
Geology. a thin, distinctive stratum useful for stratigraphic correlation.
Also called soil horizon. any of the series of distinctive layers found in a vertical cross section of any well-developed soil.
Origin of horizon
1540–50; < Latin horizōn < Greek horízōn (kýklos) bounding (circle), equivalent to horíz(ein) to bound, limit + -ōn present participle suffix (nominative singular); replacing Middle English orizonte < Middle French < Latin horizontem, accusative of horizōn
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for sensible horizon (1 of 2)
British Dictionary definitions for sensible horizon (2 of 2)
/ (həˈraɪzən) /
Also called: visible horizon, apparent horizon the apparent line that divides the earth and the sky
- Also called: sensible horizon the circular intersection with the celestial sphere of the plane tangential to the earth at the position of the observer
- Also called: celestial horizon the great circle on the celestial sphere, the plane of which passes through the centre of the earth and is parallel to the sensible horizon
the range or limit of scope, interest, knowledge, etc
a thin layer of rock within a stratum that has a distinct composition, esp of fossils, by which the stratum may be dated
on the horizon likely or about to happen or appear
Derived Formshorizonless, adjective
Word Origin for horizon
C14: from Latin, from Greek horizōn kuklos limiting circle, from horizein to limit, from horos limit
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
Science definitions for sensible horizon (1 of 2)
[ hə-rī′zən ]
- The apparent intersection of the Earth and sky as seen by an observer. Also called apparent horizon
- See celestial horizon.
- See sensible horizon.
- A specific position in a stratigraphic column, such as the location of one or more fossils, that serves to identify the stratum with a particular period.
- A specific layer of soil or subsoil in a vertical cross-section of land.
Archaeology A period during which the influence of a particular culture spread rapidly over a defined area.
Science definitions for sensible horizon (2 of 2)
[ sĕn′sə-bəl ]
The plane of an observer's position lying at a right angle to the line formed by the observer's zenith and nadir. The plane of the sensible horizon is parallel to the plane of the observer's celestial horizon but is tangential to the Earth's surface rather than passing through the Earth's center. Both the celestial and sensible horizons change with the observer's position. Compare celestial horizon.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Idioms and Phrases with sensible horizon
see on the horizon.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.