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Definitions for: Vertical
[n] a vertical structural member as a post or stake; "the ball sailed between the uprights"
[n] something that is oriented vertically
[adj] at right angles to the plane of the horizon or a base line; "a vertical camera angle"; "the monument consists of two vertical pillars supporting a horizontal slab"; "measure the perpendicular height"
[adj] upright in position or posture; "an erect stature"; "erect flower stalks"; "for a dog, an erect tail indicates aggression"; "a column still vertical amid the ruins"; "he sat bolt upright"
Webster (1913) Definition: Ver"ti*cal, a. [Cf. F. vertical. See Vertex.]
1. Of or pertaining to the vertex; situated at the vertex, or
highest point; directly overhead, or in the zenith;
perpendicularly above one.
Charity . . . is the vertical top of all religion.
--Jer. Taylor.
2. Perpendicular to the plane of the horizon; upright; plumb;
as, a vertical line.
Vertical angle (Astron. & Geod.), 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.
Vertical anthers (Bot.), such anthers as stand erect at the
top of the filaments.
Vertical circle (Astron.), an azimuth circle. See under
Azimuth.
Vertical drill, an drill. See under Upright.
Vertical fire (Mil.), the fire, as of mortars, at high
angles of elevation.
Vertical leaves (Bot.), leaves which present their edges to
the earth and the sky, and their faces to the horizon, as
in the Australian species of Eucalyptus.
Vertical limb, a graduated arc attached to an instrument,
as a theodolite, for measuring vertical angles.
Vertical line.
(a) (Dialing) A line perpendicular to the horizon.
(b) (Conic Sections) A right line drawn on the vertical
plane, and passing through the vertex of the cone.
(c) (Surv.) The direction of a plumb line; a line normal
to the surface of still water.
(d) (Geom., Drawing, etc.) A line parallel to the sides of
a page or sheet, in distinction from a horizontal line
parallel to the top or bottom.
Vertical plane.
(a) (Conic Sections) A plane passing through the vertex of
a cone, and through its axis.
(b) (Projections) Any plane which passes through a
vertical line.
(c) (Persp.) The plane passing through the point of sight,
and perpendicular to the ground plane, and also to the
picture.
Vertical sash, a sash sliding up and down. Cf. {French
sash}, under 3d Sash.
Vertical steam engine, a steam engine having the crank
shaft vertically above or below a vertical cylinder.
Ver"ti*cal, n.
1. Vertical position; zenith. [R.]
2. (Math.) A vertical line, plane, or circle.
Prime vertical, Prime vertical dial. See under Prime,
a.
Synonyms: erect, erectile, fastigiate, orthostatic, passant(ip), perpendicular, plumb, rampant(ip), rearing, standing(a), stand-up, statant(ip), straight-backed, unbent, unbowed, unsloped, upended, upright, upright
Antonyms: horizontal, inclined, unerect
See Also: column, goalpost, jamb, orientation, pillar, post, scantling, shaft, steep, stile, straight, structural member, stud
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