Definition of horizon

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Horizon (n.) A plane parallel to the sensible horizon of a place, and passing through the earth's center; -- called also rational / celestial horizon..

Lern More About Horizon

Uprise :: Uprise (v. i.) To rise; to get up; to appear from below the horizon.
Drive :: Drive (v. t.) To dig Horizontally; to cut a horizontal gallery or tunnel.
Level :: Level (n.) An instrument by which to find a horizontal line, or adjust something with reference to a horizontal line..
Pole :: Pole (n.) A point upon the surface of a sphere equally distant from every part of the circumference of a great circle; or the point in which a diameter of the sphere perpendicular to the plane of such circle meets the surface. Such a point is called the pole of that circle; as, the pole of the horizon; the pole of the ecliptic; the pole of a given meridian..
Cornice :: Cornice (n.) Any horizontal, molded or otherwise decorated projection which crowns or finishes the part to which it is affixed; as, the cornice of an order, pedestal, door, window, or house..
Nonagesimal :: Nonagesimal (n.) The middle or highest point of the part of the ecliptic which is at any given moment above the horizon. It is the ninetieth degree of the ecliptic, reckoned from the points in which it is intersected by the horizon..
Steeve :: Steeve (n.) The angle which a bowsprit makes with the horizon, or with the line of the vessel's keel; -- called also steeving..
Heave :: Heave (n.) A horizontal dislocation in a metallic lode, taking place at an intersection with another lode..
Theodolite :: Theodolite (n.) An instrument used, especially in trigonometrical surveying, for the accurate measurement of horizontal angles, and also usually of vertical angles. It is variously constructed..
Natant :: Natant (a.) Placed horizontally across the field, as if swimmimg toward the dexter side; said of all sorts of fishes except the flying fish..
Chimney-breast :: Chimney-breast (n.) The horizontal projection of a chimney from the wall in which it is built; -- commonly applied to its projection in the inside of a building only.
Transom :: Transom (n.) A horizontal crossbar in a window, over a door, or between a door and a window above it. Transom is the horizontal, as mullion is the vertical, bar across an opening. See Illust. of Mullion..
Declination :: Declination (n.) The arc of the horizon, contained between the vertical plane and the prime vertical circle, if reckoned from the east or west, or between the meridian and the plane, reckoned from the north or south..
Stone-horse :: Stonehenge (n.) An assemblage of upright stones with others placed horizontally on their tops, on Salisbury Plain, England, -- generally supposed to be the remains of an ancient Druidical temple..
Table :: Table (n.) A plane surface, supposed to be transparent and perpendicular to the horizon; -- called also perspective plane..
Turbine :: Turbine (n.) A water wheel, commonly horizontal, variously constructed, but usually having a series of curved floats or buckets, against which the water acts by its impulse or reaction in flowing either outward from a central chamber, inward from an external casing, or from above downward, etc.; -- also called turbine wheel..
Hoist :: Hoist (n.) The perpendicular height of a flag, as opposed to the fly, or horizontal length when flying from a staff..
Bed :: Bed (n.) The horizontal surface of a building stone; as, the upper and lower beds..
Windlass :: Windlass (n.) A machine for raising weights, consisting of a horizontal cylinder or roller moving on its axis, and turned by a crank, lever, or similar means, so as to wind up a rope or chain attached to the weight. In vessels the windlass is often used instead of the capstan for raising the anchor. It is usually set upon the forecastle, and is worked by hand or steam..
Noddy :: Noddy (n.) An inverted pendulum consisting of a short vertical flat spring which supports a rod having a bob at the top; -- used for detecting and measuring slight horizontal vibrations of a body to which it is attached.
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