名詞 abatis:

1. line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) toward the enemy
   同義詞：abattis

ab.a.tis

n.（名詞）
pl. ab.a.tis[-tôz.] 或 ab.a.tis.es [-t-sz]
A defensive obstacle made by laying felled trees on top of each other with branches, sometimes sharpened, facing the enemy.
鹿砦，鹿角柵，鐵絲網(wǎng)：用伐倒的樹木排成的防御障礙，帶枝杈的樹端相互迭放面向敵人，有時也將枝杈削尖

來源：
French [pile of things thrown down]
French [pile of things thrown down]
from Old French abateis ; akin to abattre [to throw down] * see abate
from Old French abateis ；類似于 abattre [to throw down] *參見 abate