vertical : Idioms & Phrases

• the difference between the actual direction of a plumb line and the direction it would have if the earth were a perfect ellipsoid and homogeneous, caused by the attraction of a mountain, or irregularities in the earth's density.

Webster 1913

• (Astron.), the vertical circle which passes through the east and west points of the horizon.

Webster 1913

• . See under Prime, a.

Webster 1913

• a dial in which the shadow is projected on the plane of the prime vertical.

Webster 1913

• a transit instrument the telescope of which revolves in the plane of the prime vertical, used for observing the transit of stars over this circle.

Webster 1913

• the point upon the earth's surface vertically over the center of effort or focal point whence the earthquake's impulse proceeds, or the vertical line connecting these two points.

Webster 1913

• noun either of two equal and opposite angles formed by the intersection of two straight lines
  

WordNet

• (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.

Webster 1913

• (Bot.), such anthers as stand erect at the top of the filaments.

Webster 1913

• noun a bank so steep that the plane's lateral axis approaches the vertical
  

WordNet

• noun a great circle on the celestial sphere passing through the zenith and perpendicular to the horizon
  

WordNet

• (Astron.), an azimuth circle. See under Azimuth.

Webster 1913

• noun absorption into a single firm of several firms involved in all aspects of a product's manufacture from raw materials to distribution
  vertical combination.
  

WordNet

• an drill. See under Upright.

Webster 1913

• noun a file in which records are stored upright on one edge
  

WordNet

• noun a stabilizer that is part of the vertical tail structure of an airplane
  tail fin; vertical stabiliser; vertical fin; tailfin.
  

WordNet

• (Mil.), the fire, as of mortars, at high angles of elevation.

Webster 1913

• noun a tubular wind instrument with 8 finger holes and a fipple mouthpiece
  fipple flute; recorder; fipple pipe.
  

WordNet

• noun absorption into a single firm of several firms involved in all aspects of a product's manufacture from raw materials to distribution
  vertical combination.
  

WordNet

• (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.

Webster 1913

• a graduated arc attached to an instrument, as a theodolite, for measuring vertical angles.

Webster 1913

• . (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.

Webster 1913

• . (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.

Webster 1913

• a sash sliding up and down. Cf. French sash, under 3d Sash.

Webster 1913

• noun a mechanical drawing showing the interior of an object as if made by a vertical plane passing through it
  

WordNet

• noun a stabilizer that is part of the vertical tail structure of an airplane
  tail fin; vertical stabiliser; vertical fin; tailfin.
  

WordNet

• noun a stabilizer that is part of the vertical tail structure of an airplane
  tail fin; vertical stabiliser; vertical fin; tailfin.
  

WordNet

• a steam engine having the crank shaft vertically above or below a vertical cylinder.

Webster 1913

• noun a surface that is vertical
  

WordNet

• noun the vertical airfoil in the tail assembly of an aircraft
  

WordNet

• noun a labor union that admits all workers in a given industry irrespective of their craft
  industrial union.
  

WordNet