Meaning of HORIZON in English

HORIZON

I. həˈrīz ə n noun

( -s )

Etymology: alteration (influenced by Late Latin horizon ) of Middle English orisonte, orizon, from Late Latin horizont-, horizon, from Greek horizont-, horizōn, from present participle of horizein to separate, part, bound, define, from horos boundary, limit + -izein -ize; akin to Latin urvus circumference of a city, Oscan uruvú boundary

1.

a. : a circle that bounds the part of the earth's surface visible from a given point : an apparent junction of earth and sky

b.

(1) : a great circle 90 degrees from the zenith and constituting the equator of the horizon system of coordinates

(2) : the circle in which a plane perpendicular to the direction of gravity intersects the celestial sphere

(3) : the plane tangent to the earth's surface at the observer's position

(4) : a level mirror (as the surface of mercury in a shallow vessel or a plane reflector adjusted to the true level artificially) used especially in observing altitudes — called also artificial horizon, false horizon

c. or horizon line : an imaginary line in a picture on which is projected the point of sight or station point of the spectator and which in a landscape replaces the natural horizon — compare perspective

d.

(1) : the fullest range or widest limit of perception, interest, appreciation, knowledge, or experience

the horizon of the human intellect has widened wonderfully during the past hundred years — C.W.Eliot

your horizon contracts, your mind's eye is focused upon a small circle of … details — Jan Struther

(2) : the range or limit of hope or expectation or a visible and seemingly attainable end or object lying within or upon it : goal , prospect

youth … demands of life some hope and horizon — John Buchan

China with its horizons of industrialization and trade — M.W.Straight

2.

a. : the geological deposit of a particular time, usually identified by distinctive fossils : a stratigraphic level or position in the geologic column : a natural soil layer ; also : zone

b. : any of the reasonably distinct layers of soil or its underlying material seen in a vertical section or profile of land and gradually developed as a result of natural soil-forming processes (as the incorporation of organic matter with disintegrated rock material) — see a-horizon , b-horizon , c-horizon , d-horizon

c.

(1) : a cultural area or level of development indicated by widely separated groups of artifacts showing cultural similarities (as in specific styles or objects)

(2) : a period of time indicated by a particular level of development in an excavated site

3. : horizon blue 2

Synonyms: see range

II. transitive verb

( -ed/-ing/-s )

: to limit by a horizon

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.