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 classic literature ?
Lastly, her cheek-bones stood out, as if nature had intended them for two bastions to defend her eyes in those encounters for which she seemed so well calculated, and to which she was most wonderfully well inclined.
One day I saw Miss Haldin walking alone in the main valley of the Bastions under the naked trees.
A small white cloud, which had attracted Dantes' attention, crowned the summit of the bastion of the Chateau d'If.
and he then related to Raoul the story of the bastion, and Raoul fancied he was listening to one of those deeds of arms belonging to days of chivalry, so gloriously recounted by Tasso and Ariosto.
It would have been easy for Kirby, with his powerful frame, to have seized the moment to scale the bastion, and, with his great strength, to have sent both of its defenders in pursuit of the veteran; but hostility appeared to he the passion that the wood-chopper indulged the least in at that moment, for, in a voice that was heard by the retreating left wing, he shouted:
Do you remember the history of the Bastion Saint- Gervais, captain?
captain," replied the latter, "I do not tell you that they have not with them two or three men, as the musketeers of the Bastion Saint- Gervais had two or three lackeys; but, believe me, captain, I have seen these men, I have been taken prisoner by them - I know they themselves alone are all-sufficient to destroy an army.
From either side they were sweeping down from room to room and from bastion to bastion in the direction of the keep.
Do not excite yourself, my worthy president," replied Michel; "might it not be possible that the dark lines forming that bastion were rows of trees regularly placed?
High and straight, brown and polished, merging abruptly into temples and skull, it has the effect of a bastion that protected his head from the world.
Rising from rolling stubble fields, Bennett Peak towered hot in the sun, a row of bastion hills leaning against its base.
Official sources said the damage caused by rains and ageing process to three bastions and two segments of fort's 80 feet high boundary wall that is around eight to nine feet thick was reported some time ago and government recently approved the proposal and released funds.