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, ascending toward the zenith from a dusky line or bank, a few degrees above the northern horizon; when reaching south beyond the zenith, it forms what is called the corona, about a spot in the heavens toward which the dipping needle points. Occasionally the aurora appears as an arch of light across the heavens from ea…

er along the axis, shall coincide with the other part. -- Axis of the equator, ecliptic, horizon (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. Hutton. -- Axis of the Ionic capital (Arch.), a line passing perpen…

An arc of the horizon intercepted between the meridian of the place and a vertical circle passing through the center of any object; as, the azimuth of a star; the azimuth or bearing of a line surveying.

Of or pertaining to the azimuth; in a horizontal circle. Azimuthal error of a transit instrument, its deviation in azimuth from the plane of the meridian.

A blue color, represented in engraving by horizontal parallel lines.

The upper part of a lode, or the roof of a horizontal underground passage.

Barren regions, especially in the western United States, where horizontal strata (Tertiary deposits) have been often eroded into fantastic forms, and much intersected by canons, and where lack of wood, water, and forage increases the difficulty of traversing the country, whence the name, first given by the Canadian Fre…

reaction wheel. The water flows into a vertical tube and gushes from apertures in hollow horizontal arms, causing the machine to revolve on its axis.

Horizontally.

eavage. See under Cleavage. -- Basal plane (Crystallog.), one parallel to the lateral or horizontal axis.

Arch.), a window or one division of a window having vertical sides, but with the sill not horizontal, as where it follows the rake of a staircase.

A blacksmith's hammer, suspended, and worked horizontally.

One of the principal horizontal timbers of a building or ship. The beams of a vessel are strong pieces of timber stretching across from side to side to support the decks. Totten.

A layer or seam, or a horizontal stratum between layers; as, a bed of coal, iron, etc.

Any permanent mark to which other levels may be referred. Specif. : A horizontal mark at the water's edge with reference to which the height of tides and floods may be measured.

The marking of the clothes with stripes or horizontal bands. [Obs.] Chaucer.

The dazzling whiteness about the horizon caused by the reflection of light from fields of ice at sea; ice blink.

r, perhaps, because designed to clear away the clouds and fogs from the simple investor's horizon. [Colloq.]

cording to the shape of the instrument and the manner of throwing it, often moving nearly horizontally a long distance, then curving upward to a considerable height, and finally taking a retrograde direction, so as to fall near the place from which it was thrown, or even far in the rear of it.

ece of ordnance carried at the bow of a ship. -- On the bow (Naut.), on that part of the horizon within 45º on either side of the line ahead. Totten.