the great circle of the celestial sphere equi-distant from the zenith and the nadir
the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth
The earliest Time Step for which a full History is retained It is expressed as a non-negative integer A Transitioned Variable maintains pointers to the Mode Transition Variable at both the Horizon and the Zenith
Your horizons are the limits of what you want to do or of what you are interested or involved in. As your horizons expand, these new ideas can give a whole new meaning to life
The horizontal plane passing through an observer and experienced as the circle where the sky meets the ground Geometrically, it's the "tangent plane" to the Earth's surface at the position where the observer is located One of the fundamental planes defining local space, along with the meridian and the Prime Vertical See also House
In geology, any given definite position or interval in the stratigraphic column or the scheme of stratigraphic classification; generally used in a relative sense
1 geologic A plane of stratification assumed to have been originally horizontal 2 soil A layer of soil distinguished by characteristic physical properties Soil horizons generally are designated by letters (for example, A horizon, B horizon, C horizon)
If something is on the horizon, it is almost certainly going to happen or be done quite soon. With breast cancer, as with many common diseases, there is no obvious breakthrough on the horizon. In pedology, a distinct layer of soil forming part of the vertical sequence in a soil profile. Each horizon differs from the one above or below it in colour, chemical composition, texture, and structure. The horizons become differentiated during soil development because conditions vary with depth. There are generally three major layers within any given soil profile, and they are designated, from surface downward, as A, B, and C horizons. The A horizon generally contains more organic matter than the others; it is also the most weathered and leached. The B horizon tends to be a zone of accumulation, since all or part of the mineral matter removed from the A horizon in solution may be deposited in it. The C horizon consists chiefly of the materials from which the A and B layers were derived; called parent materials, these are only slightly altered, because they are in general not subjected to soil-forming processes
The plane perpendicular to the local vertical direction as defined by a plumb-line
A plane parallel to the sensible horizon of a place, and passing through the earth's center; called also rational or celestial horizon
The great circle on the celestial sphere marked by a plane perpendicular to the zenith-nadir axis and tangent to the Earth at the point of the observer
the line at which the sky and Earth appear to meet the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth a specific layer or stratum of soil or subsoil in a vertical cross section of land
the range of interest or activity that can be anticipated; "It is beyond the horizon of present knowledge"
The circle which bounds that part of the earth's surface visible to a spectator from a given point; the apparent junction of the earth and sky
Düz arazide veya açık denizde gökle yerin birleşir gibi göründüğü yer, çevren, göz erimi: "Geniş çöl ufukları arasında çadırlarımızı kurduk."- F. R. Atay
Anlayış, kavrayış, görüş, düşünce gücü, ihata: "Bu dar zihinlerde, ufku genişlememiş dimağlarda, zaruri olarak faziletler de dardı."- Ö. Seyfettin. Çevre, dolay