defilade

tr.v., -lad·ed, -lad·ing, -lades.
To arrange (fortifications) in such a way as to give protection from enfilading and other fire.

n.

1. The act or procedure of defilading.
2. A fortified position offering protection from enfilading and other fire.

[DE- + (EN)FILADE.]

[ܖdef;ǝܒl;ād; ܒdef;ǝܖl;ād;]

ܖdef;ǝˈl;ād; ˈdef;ǝܖl;ād; n. the protection of a position, vehicle, or troops against enemy observation or gunfire.

v.

protect (a position, vehicle, or troops) against enemy observation or gunfire:

See the Introduction, Abbreviations and Pronunciation for further details.

A cut or low spot in the ground used for cover by tanks and personnel.

(DOD, NATO) 1. Protection from hostile observation and fire provided by an obstacle such as a hill, ridge, or bank. 2. A vertical distance by which a position is concealed from enemy observation. 3. To shield from enemy fire or observation by using natural or artificial obstacles.

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The noun has one meaning:

Meaning #1: the arrangement of defensive fortifications to protect against enemy fire

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