noun.
Vertical position; zenith.
noun.
A vertical line, plane, or circle.
noun.
See under Prime, a.
noun.
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adjective.
Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one.
adjective.
Perpendicular to the plane of the horizon; upright; plumb.
adjective.
an angle measured on a vertical circle, called an angle of elevation, or altitude, when reckoned from the horizon upward, and of depression when downward below the horizon.
adjective.
such anthers as stand erect at the top of the filaments.
adjective.
an azimuth circle. See under Azimuth.
adjective.
an upright drill. See under Upright.
adjective.
the fire, as of mortars, at high angles of elevation.
adjective.
leaves which present their edges to the earth and the sky, and their faces to the horizon, as in the Australian species of Eucalyptus.
adjective.
a graduated arc attached to an instrument, as a theodolite, for measuring vertical angles.
adjective.
A line parallel to the sides of a page or sheet, in distinction from a horizontal line parallel to the top or bottom.
adjective.
The plane passing through the point of sight, and perpendicular to the ground plane, and also to the picture.
adjective.
a sash sliding up and down. Cf. French sash, under 3d Sash.
adjective.
a steam engine having the crank shaft vertically above or below a vertical cylinder.