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a gently sloping embankment in front of the outside ditch of a fortress, long-term structure, or field fortification. The glacis was built for the purpose of improving the field of fire over terrain lying in front of it and for camouflaging and defending the fortification.

In Russian fortresses the main rampart sometimes had a glacis-like profile, so that frontal fire could be directed at the bottom of the outside ditch. In current long-term fortifications the glacis is not used, and in field fortifications (foxholes and trenches) a breastwork is set up. In architecture the glacis is the unbuilt space in front of a fortress (in front of the earth embankment or in its place if it has been destroyed). During a city’s development around a fortress, the glacis usually was turned into a garden or a square (for example, the Admiralty and Senate [now Decembrists] squares in Leningrad on the site of the 18th-century ditches and glacis of the Admiralty shipyard-fortress).


A sloped embankment in front of a fortification, so raised as to bring an advancing enemy into the most direct line of fire.
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References in periodicals archive ?
One lap later, Benedetti attacked on Cote des Glacis, splitting the front group.
SLOWLY, EVER SO slowly, we are realizing, or at least should I be, that the fundamental reordering of Europe that began with the crumbling collapse of an overextended and unsustainable communist glacis in the late 1980s has had far greater and far-reaching reverberations than we then would or could have predicted.
They were around for a few days before disappearing from the plateau in the area of the spa and Glacis Cerf.
As in Area K, excavations here were located adjacent to the upper city enclosure wall, which proved to have a mud-plastered glacis against its exterior.
Of special note is his concluding chapter devoted to 'The Glacis of Retirement'.
The IPS was deployed in the independent Indian Native States, like Hyderabad, and countries outside India's borders which formed a glacis around it, including those of the Persian Gulf.
Behind the walls, suburbs were slowly developing but they developed aloof because a several hundred meters wide band, called Glacis, was kept around the city.
We sing carols about roasting them at Christmastime, the French spend days candying and drying their marrons glacis for the holiday season, and no Japanese New Year is complete without these symbols of wealth.
Ainsi, le rapport annuel du departement des travaux publics en 1929 (35) indique que : * La ville a fait acquisition des proprietes necessaires pour ameliorer la circulation du trafic entre les rues Saint-Jean, d'Aiguillon, des Glacis et d'Youville *, Ces modifications soulignent la nouvelle organisation de la circulation, basee sur quelques arteres principales d'ecoulement qui permettent de traverser la ville rapidement, comme le boulevard Charest, la rue Saint-Jean, la cote d'Abraham et des arteres secondaires, et repondent a un besoin des citadins oriente intra-muros.
Marshes, Micmac Indians who were paid a livre apiece for enemy scalps, a glacis, ditch and covertway provided additional protection on the landward side.
Mikhail Gorbachev's agreement with Washington to withdraw the Red Army from the protective glacis of Eastern Europe in exchange for Nato's agreement C not to advance east was blatantly violated by three US presidents as the alliance moved to the shores of Black Sea and Baltic.
Is Bashar trying to revive a tradition set by his father by proving that Syria is something more than part of an Iranian glacis in the Levant?