adjective. Intersecting at or forming right angles.

adjective. Being at right angles to the horizontal; vertical. synonym: vertical.

adjective. Of or relating to a style of English Gothic architecture of the 1300s and 1400s, characterized by emphasis of the vertical element.

adverb. In a perpendicular position.

noun. A line or plane perpendicular to a given line or plane.

noun. A perpendicular position.

noun. A device, such as a plumb line, that is used in marking the vertical from a given point.

noun. A vertical or nearly vertical line or plane.

noun. In ship-building, one of the three conventional lines perpendicular to the line of the keel, used as reference lines from which measurements in the fore-and-aft direction are taken.

Perfectly vertical; at right angles with the plane of the horizon; passing (if extended through the center of the earth; coinciding with the direction of gravity.

In geometry, meeting a given line or surface (to which it is said to be perpendicular) at right angles.

In zoology, forming a right angle with the longitudinal or latitudinal axis of the body: as, a perpendicular head; epimeron perpendicular, etc.

noun. A line at right angles to the plane of the horizon; a line that coincides in direction with a radius of the earth or with the direction of gravity.

noun. 2. In geometry, a line that meets another line or a place at right angles, or makes equal angles with it on every side.

noun. In gunnery, a small instrument for finding the center-line of a piece of ordnance, in the operation of pointing it at an object; a gunner's level.

adjective. Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line from any point toward the center of the earth.

adjective. At right angles to a given line or surface.

adjective. a name given to the latest variety of English Gothic architecture, which prevailed from the close of the 14th century to the early part of the 16th; -- probably so called from the vertical style of its window mullions.

noun. A line at right angles to the plane of the horizon; a vertical line or direction.

noun. A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.

adjective. At or forming a right angle (to).

noun. A line or plane that is perpendicular to another.

noun. A device such as a plumb line that is used in making or marking a perpendicular line.

noun. a straight line at right angles to another line

noun. a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point

adjective. at right angles to the plane of the horizon or a base line

adjective. intersecting at or forming right angles

noun. a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting

noun. an extremely steep face

adjective. extremely steep

"In fixing a barometer for observation, it is indispensable that it be hung in a perpendicular position, seeing that it is the _perpendicular distance_ between the surface of the mercury in the cistern and the top of the column which is the true height of the barometer."

erect  perpendicular lift  perpendicular plate  perpendicular style  precipitous  

normal  orthogonal  plumb  rectangular  right  

face  straight line  

curricular  extracurricular  particular  testicular  vehicular  

circular  cylindrical  diagonal  inaccessible  irregular  

air line  axis  azimuth circle  beeline  chord