pillar

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pillar,

freestanding columnar supporting member. It is a general term, little used as an exact architectural definition except as applied to an upright support in the medieval styles, consisting of an assemblage of juxtaposed shafts and moldings; unlike the column, it does not adhere to the rules of the orders of architectureorders of architecture.
In classical tyles of architecture the various columnar types fall, in general, into the five so-called classical orders, which are named Doric, Ionic, Corinthian, Tuscan, and Composite.
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Pillar

A column or post supporting an arch or other superimposed load. Clustered or compound pillars consist of a central shaft with smaller shafts that are grouped around it.

Pillar

 

part of a bed or seam of a mineral that is left untouched when working a deposit in order to support the roof and protect mine excavations and surface structures.

Based on their purposes various types of pillars are distin guished: protective pillars (between levels, above and below drifts, between chambers), which protect objects during mining operations; fire safety pillars, which separate individual parts of the mine field from one another and help contain the fire, should it begin, within small areas; barrier pillars, which prevent surface or subterranean waters, gases, or loose silt from an excavation or unused mine from entering working mines; and support pillars, which prevent the rocks of the roof of the seam or ore body from caving in into an excavated area. The pillar size depends on the mining-geological conditions and the purpose of the pillar and is built according to standard guidelines.

pillar

[′pil·ər]
(civil engineering)
A column for supporting part of a structure.
(geology)
A natural formation shaped like a pillar.
A joint block produced by columnar jointing.
(mining engineering)
An area of coal or ore left to support the overlying strata or hanging wall in a mine.

pillar

pillar: Perpendicular style
A column, pier, pilaster, or post that is capable of providing major vertical support.

pillar

1. an upright structure of stone, brick, metal, etc., that supports a superstructure or is used for ornamentation
2. a tall, slender, usually sheer rock column, forming a separate top
References in periodicals archive ?
Intrigued by the findings, scientists selected Pillan for one of the close-up studies the craft is now conducting.
In June, both the craft and the Hubble Space Telescope recorded what now appears to be the source of the debris: a 120-km-high plume emanating from Pillan Patera.
Recent scholarship on the Srivaisnava manipravala commentaries includes the following: John Carman and Vasudha Narayanan, The Tamil Veda: Pillan s Interpretation of the Tiruvaymoli (Chicago: Univ.
Pillan as they continue to build the progressive company towards a rapid-growth future.
HOME p17 The first chalkboard was used at a school in Edinburgh in 1801 by a pioneering geography teacher called John Pillans.
Meanwhile, Glamorgan have given a second-team run-out to South African Matthew Pillans, a 24-year-old fast bowler who has played first-class cricket for Dolphins and Northerns in his home country.
Lynda Pillans, 26, has been attending the course with nephew Billy Denyer, nine, a pupil at Hedworth Lane Primary School in South Tyneside.
Polypharmacy has also been associated with other negative outcomes such as decreased adherence to medication regimens and an increased risk of falls, hospital admissions and mortality (Scott, Gray, Martin, Pillans, & Mitchell, 2013).
Tenders are invited for New Walk-In Cooler and New Walk-In Freezer - Pillans Middle School
Taylor PJ, Franklin ME, Tai CH, Pillans PL Therapeutic drug monitoring of tacrolimus by liquid chromatography-tandem mass spectrometry: Is it truly a routine test?