glacis

/ˈɡleɪsɪs/
noun
  1. A gentle slope, especially one built in front of a fortification to expose attackers to defensive fire.
    • The castle's glacis made it difficult for enemies to approach unseen.
    • Engineers designed a glacis of packed earth around the fort.
    • From the top of the glacis, soldiers could fire down on advancing troops.
  2. A sloping bank or surface, such as on a dam or road embankment.
    • The park's design included a glacis leading down to the lake.
    • The dam's glacis helped direct water flow during heavy rain.
    • A grassy glacis lined the highway to prevent erosion.
Synonyms
What does "glacis" mean? | whatsthatwordmean | whatsthatwordmean