| hor | the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth |
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| hor | a specific layer or stratum of soil or subsoil in a vertical cross section of land |
| hor | something that is oriented horizontally |
| hor | parallel to or in the plane of the horizon or a base line |
| hor | gymnastic apparatus consisting of a bar fixed in a horizontal position for gymnastic exercises |
| hor | absorption into a single firm of several firms involved in the same level of production and sharing resources at that level |
| hor | absorption into a single firm of several firms involved in the same level of production and sharing resources at that level |
| hor | the maximum parallax observed when the celestial body is at the horizon |
| hor | a mechanical drawing of an object as if made by a plane cutting through it horizontally |
| hor | the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged |
| hor | the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged |
| hor | a flat surface at right angles to a plumb line |