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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 architecture orders 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.
..... Click the link for more information. . pillarRelatively slender isolated vertical structural member such as a pier or (usually squat) column. It may be constructed of a single piece of stone or wood or built up of units, such as bricks. A pillar commonly has a load-bearing or stabilizing function, but it may also stand alone, as do commemorative pillars. 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 pillar [′pilĀ·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 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. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | In severe cases, the tonsillar lesions extended to involve the anterior and posterior pillars of fauces, as well as the soft palate and uvula. |
pillars of fauces |
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