### perpendicular

1. a straight line at right angles to another line
2. a Gothic style in 14th and 15th century England; characterized by vertical lines, a four-centered (Tudor) arch, fan vaulting
3. 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
4. an extremely steep face
...
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### Perpendicular

In elementary geometry, the word perpendicular describes the relationship between two lines which meet at a right angle. A line is said to be perpendicular to a plane if it is perpendicular to every line in the plane that it intersects. Note that this definition depends on the definition of perpendicularity between lines. Two planes in space are s...
Found on http://en.wikipedia.org/wiki/Perpendicular

### Perpendicular

• (n.) A line at right angles to the plane of the horizon; a vertical line or direction. • (a.) At right angles to a given line or surface; as, the line ad is perpendicular to the line bc. • (a.) 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 ...
Found on http://thinkexist.com/dictionary/meaning/perpendicular/

### perpendicular

1. 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. ... 2. <geometry> at right angles to a given line or surface; as, the line ad is perpendicular to the line bc. Perpendicular style, a name given to the latest variety of ...
Found on http://www.encyclo.co.uk/local/20973

### perpendicular

adjective extremely steep; `the great perpendicular face of the cliff`
Found on https://www.encyclo.co.uk/local/20974

### Perpendicular

Per`pen·dic'u·lar adjective [ Latin perpendicularis , perpendicularius : confer French perpendiculaire . See Perpendicle , Pension .] 1. Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right l...
Found on http://www.encyclo.co.uk/webster/P/60

### Perpendicular

A style of English Gothic architecture current between c. 1350-1530.
Found on http://www.digital-documents.co.uk/archi/gloschur.htm

### Perpendicular

An architectural style dating from the mid 14th to the late 16th century, characterised by mullions reaching to the top of windows, and by the development of fan vaulting. Represents the last part of the Gothic period.
Found on http://www.encyclo.co.uk/local/20941

### perpendicular

At a right angle; also, a line at right angles to another line or to a plane. Everyday examples include lamp posts, which are perpendicular to the road, and walls, which are perpendicular to the ground. For a pair of skew lines (lines in three dimensions that do not meet), there is just one commo...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0036027.html

### Perpendicular

At right angles to. A line at right angles to another line or to a plane. See also: Orthogonal.
Found on http://www.diracdelta.co.uk/science/source/p/e/perpendicular/source.html

### perpendicular

At right angles. Two lines, planes, etc., are said to be perpendicular if they are 90° apart.
Found on http://www.daviddarling.info/encyclopedia/P/perpendicular.html

### Perpendicular

English architectural style (1330-1540).
Found on http://www.encyclo.co.uk/local/20018

### Perpendicular

English architectural style (1330-1540).
Found on http://www.castlesontheweb.com/glossary.html

### Perpendicular

English architectural style, c. 1330-1540
Found on https://www.encyclo.co.uk/local/20402

### Perpendicular

English architectural style, c. 1330-1540
Found on http://www.encyclo.co.uk/local/22129

### Perpendicular

Period of English Gothic architecture lasting from the end of the 14th century to the mid-16th century. It is characterized by window tracery consisting chiefly of vertical members, two or four...
Found on http://www.encyclo.co.uk/local/20688

### Perpendicular

Period of English Gothic architecture lasting from the end of the 14th century to the mid-16th century. It is characterized by window tracery consisting chiefly of vertical members, two or four arc arches, lavishly decorated vaults, and the use of traceried panels. Examples include the choir, transepts, and cloister of Gloucester Cathedral (abo...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0012340.html

### Perpendicular

Style of English Gothic architecture which flourished in England c. 1350-1550.
Found on http://www.digital-documents.co.uk/archi/gloschur.htm

### Perpendicular

style of Gothic architecture in vogue from the mid-14th to the 16th century.
Found on http://www.msgb.co.uk/glossary.html

### Perpendicular

The style of Gothic architecture used in England during the 14th and 15th centuries, characterized by tracery having vertical lines, a four-centred arch, and fan vaulting.
Found on http://www.encyclo.co.uk/local/20766

### perpendicular

[adj] - intersecting at or forming right angles 2. [adj] - extremely steep 3. [n] - a straight line at right angles to another line 4. [n] - a Gothic style in 14th and 15th century England 5. [n] - an extremely steep face
Found on http://www.webdictionary.co.uk/definition.php?query=perpendicular
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