| Horizon |
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. |
n. |
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| Horizon |
A plane passing through the eye of the spectator and at right angles to the vertical at a given place; a plane tangent to the earth's surface at that place; called distinctively the sensible horizon. |
n. |
| Horizon |
A plane parallel to the sensible horizon of a place, and passing through the earth's center; -- called also rational / celestial horizon. |
n. |
| Horizon |
The unbroken line separating sky and water, as seen by an eye at a given elevation, no land being visible. |
n. |
| Horizon |
The epoch or time during which a deposit was made. |
n. |