# Vertical plane

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Vertical plane
Vertical Ver"ti*cal, a. [Cf. F. vertical. See {Vertex}.] [1913 Webster] 1. Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one. [1913 Webster]

Charity . . . is the vertical top of all religion. --Jer. Taylor. [1913 Webster]

2. Perpendicular to the plane of the horizon; upright; plumb; as, a vertical line. [1913 Webster]

{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. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

### Look at other dictionaries:

• Vertical plane — is used in radio to plot an antenna s relative field strength perpendicular to the ground (which directly affects a station s coverage area) on a polar graph. Normally the maximum of 1.000 or 0 dB is at the side (unless there is beam tilt), which …   Wikipedia

• vertical plane — noun 1. : a plane that passes through a vertical line 2. : a plane of perspective passing through the point of sight and perpendicular to the ground plane and to the picture …   Useful english dictionary

• vertical plane — any plane of the body perpendicular to a horizontal plane and dividing the body into left and right, or front and back portions, as the sagittal and frontal planes …   Medical dictionary

• Vertical plane — Вертикальная плоскость …   Краткий толковый словарь по полиграфии

• Vertical — Ver ti*cal, a. [Cf. F. vertical. See {Vertex}.] [1913 Webster] 1. Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one. [1913 Webster] Charity . . . is the… …   The Collaborative International Dictionary of English

• Vertical angle — Vertical Ver ti*cal, a. [Cf. F. vertical. See {Vertex}.] [1913 Webster] 1. Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one. [1913 Webster] Charity . . . is… …   The Collaborative International Dictionary of English

• Vertical anthers — Vertical Ver ti*cal, a. [Cf. F. vertical. See {Vertex}.] [1913 Webster] 1. Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one. [1913 Webster] Charity . . . is… …   The Collaborative International Dictionary of English

• Vertical circle — Vertical Ver ti*cal, a. [Cf. F. vertical. See {Vertex}.] [1913 Webster] 1. Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one. [1913 Webster] Charity . . . is… …   The Collaborative International Dictionary of English

• Vertical drill — Vertical Ver ti*cal, a. [Cf. F. vertical. See {Vertex}.] [1913 Webster] 1. Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one. [1913 Webster] Charity . . . is… …   The Collaborative International Dictionary of English

• Vertical fire — Vertical Ver ti*cal, a. [Cf. F. vertical. See {Vertex}.] [1913 Webster] 1. Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one. [1913 Webster] Charity . . . is… …   The Collaborative International Dictionary of English