Bastion

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bastion

[′bas·chən]
(geology)
A prominent aggregation of bedrock extending from the mouth of a hanging glacial trough and reaching well into the main glacial valley.

Bastion

A projecting portion of a fortification designed to defend the adjacent curtain wall; it typically approximates a semi-hexagon, with the two outer faces meeting at an acute angle, and two flanks abutting a curtain wall on each side.

Bastion

 

a pentagonal fortification erected at the corners of the fortress wall to fire at the area in front of or along the fortress wall or the moats in front of them. Bastions appeared for the first time in Italy at the end of the 15th century and in Russia in the 16th century, where they were called raskats until the 18th century. A fortress bastion in Russia and in other countries consisted of one or two earth ramparts for the placement of weapons: the first, or the main rampart, and the second, or cavalier, which was higher than the first. The front sides of the bastion were called faces; the sides, flanks; and the inner rear side was called the gorge. The parts of two neighboring bastions facing each other and the section of the barrier connecting them, called the curtain, formed the bastion front.

bastion

A defense work, round, rectangular, or polygonal in plan, projecting from the outer wall of a fortification, principally to defend the adjacent perimeter.
References in periodicals archive ?
As many as 22 bastions of the wall can easily be identified.
While I knew what I was doing visually, I realised there was an element missing as I didn't know all the names of the bastions off by heart, nor their history.
Boeing and Bastion Technologies will share best practices in areas such as manufacturing, quality, marketing and business development during the upcoming 18 months.
Les habitants appellent cette zone de la ville "Kandahar de Benghazi", en reference a la ville afghane connue pour etre un bastion des organisations djihadistes.
He, however, added that exact extent of damage to the boundary wall and its three bastions would be known following his visit to the site expected within next few days to prepare detailed estimates as per orders of high ups for execution of the conservation scheme.
drones carried out two air strikes on bastions and checkpoints of al-Qaida militants in the insurgents-controlled town of Azzan in Shabwa province, killing at least 10 terrorists, the local security official said on condition of anonymity.
The conquest of this male bastion can take place only in an all-female environment (Stephen Moore does have a point here).
Fort Frederick State Park, in Big Pool, Maryland is planning reconstruction of the historic fort wall and bastion interiors, a powder magazine, and the officers' quarters.
Bastions support to the Starliner program will provide the company a considerable foundation in the Houston and Florida communities.
On the city walls, the bastions have become the popular rendezvous for lovers and local people refer to them as 'stone beds'.
The Italian contingent in Mali said the Bastions might be used to support the United Nations mission in the north of the nation.
The fort had twelve bastions built with mud mortar in three different size of burnt brick tiles.