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vertical |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Vertical \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. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Vertical \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. From WordNet r 1.6 [wn]: vertical adj 1: 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" [syn: {perpendicular}] [ant: {inclined}, {horizontal}] 2: 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" [syn: {erect}, {upright}] [ant: {unerect}] n 1: something that is oriented vertically 2: a vertical structural member as a post or stake; "the ball sailed between the uprights" [syn: {upright}]
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