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horizon

Overview page. Subjects: Earth Sciences and Geography.

The great circle formed by the intersection of the plane perpendicular to the observer's zenith with the celestial sphere; also called the astronomical horizon.

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horizon

Edited by T. F. Hoad.

in The Concise Oxford Dictionary of English Etymology

January 1996; p ublished online January 2003 .

Reference Entry. Subjects: History of English. 55 words.

XIV. Late ME. orizon(te), — OF. orizon(te) (mod. horizon) — late L. horīzōn, -ont- — Gr. horízōn

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horizon

Julia Cresswell.

in The Oxford Dictionary of Word Origins

January 2009; p ublished online January 2010 .

Reference Entry. Subjects: History of English. 16 words.

[LME]

The word horizon came via late Latin horizon from Greek horizōn (kuklos) ‘limiting (circle)’.

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horizon

Edited by John Ayto.

in Oxford Dictionary of English Idioms

January 2009; p ublished online January 2010 .

Reference Entry. Subjects: History of English. 9 words.

on the horizon just imminent or becoming apparent.

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horizon

Overview page. Subjects: Earth Sciences and Geography.

A distinctive layer within a soil which differs chemically or physically from the layers below or above. The A horizon or topsoil contains humus. Often soil minerals are washed downwards...

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horizon

Susan Mayhew.

in A Dictionary of Geography

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Earth Sciences and Geography. 261 words.

A distinctive layer within a soil which differs chemically or physically from the layers below or above. The A horizon

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horizon

Susan Mayhew.

in A Dictionary of Geography

January 2015; p ublished online May 2015 .

Reference Entry. Subjects: Earth Sciences and Geography. 267 words.

A distinctive layer within a soil which differs chemically or physically from the layers below or above. The A horizon...

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horizon

Storm Dunlop.

in A Dictionary of Weather

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Environmental Science. 93 words.

The apparent boundary between the Earth's surface and the sky. The actual horizon depends on the presence of hills or

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horizon

Overview page. Subjects: Physics.

A boundary between regions of space–time in general relativity theory that signals cannot cross. For example, in an event horizon around a black hole any light that is inside the black hole...

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horizon

Overview page. Subjects: Earth Sciences and Geography.

The great circle formed by the intersection of the plane perpendicular to the observer's zenith with the celestial sphere; also called the astronomical horizon.

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horizon

Edited by Richard Rennie and Jonathan Law.

in A Dictionary of Physics

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Physics. 57 words.

A boundary between regions of space–time in general relativity theory that signals cannot cross. For example, in an *event horizon...

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horizon

Overview page. Subjects: Philosophy.

The unthematized field of perception or background of understanding accompanying the subject's experience of objects and meaning. The metaphor of the horizon has first proved useful in...

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horizon

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 44 words.

In pedology, a relatively uniform soil layer that lies, at any depth in the soil *profile, parallel, or nearly so, with the soil surface, and which is differentiated from adjacent horizons...

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horizon

Michael Allaby.

in A Dictionary of Plant Sciences

January 2012; p ublished online April 2013 .

Reference Entry. Subjects: Plant Sciences and Forestry. 43 words.

In pedology, a relatively uniform soil layer that lies, at any depth in the soil profile, parallel, or nearly so, with the soil surface, and which is differentiated from adjacent horizons...

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horizon

Overview page. Subjects: Archaeology.

[Ge]

1 In American archaeology this term refers to patterns of locally distinct phases or cultures that are linked together into bigger groups through recurrent...

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Horizon

Barry Kernfeld.

in Oxford Music Online

January 2002; p ublished online January 2003 .

Reference Entry. Subjects: Jazz. 184 words.

[A&M Horizon]

Record label. A subsidiary of the record company A&M, it was established in Los Angeles in 1975 by the producer John Snyder. Over a period of about two years it...

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soil horizon

Chris Park and Michael Allaby.

in A Dictionary of Environment and Conservation

P ublished online January 2017 .

Reference Entry. Subjects: Conservation of the Environment (Environmental Science). 22 words.

A relatively uniform layer within a *soil profile that has distinct characteristics. See also a‐horizon; b‐horizon; c‐horizon

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andic horizon

Edited by MICHAEL ALLABY.

in A Dictionary of Earth Sciences

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Earth Sciences and Geography. 9 words.

A soil horizon containing weathered pyroclastic deposits.

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andic horizon

Michael Allaby.

in A Dictionary of Geology and Earth Sciences

January 2013; p ublished online September 2013 .

Reference Entry. Subjects: Earth Sciences and Geography. 11 words.

A *soil horizon containing weathered *pyroclastic deposits.

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E horizon

Elizabeth Martin.

in The New Oxford Dictionary for Scientific Writers and Editors

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Language Reference. 7 words.

An e(luvial) mineral *soil horizon.

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horizon n

David Crystal.

in The Oxford Dictionary of Original Shakespearean Pronunciation

March 2016; p ublished online October 2016 .

Reference Entry. Subjects: Shakespeare Studies and Criticism. 6 words.

ˈɒrɪˌzɒn, ˈhɒ-

sp horizon1

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