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 (ăb′ə-tē′, -tĭs)
n. pl. ab·a·tis (-tēz′) or ab·a·tis·es (-tĭ-sĭz)
A defensive obstacle made by laying felled trees on top of each other with branches, sometimes sharpened, facing the enemy.

[French, pile of things thrown down, from Old French abateis; akin to abattre, to throw down; see abate.]


(ˈæbətɪs; ˈæbətiː) or


1. (Fortifications) a rampart of felled trees bound together placed with their branches outwards
2. (Fortifications) a barbed-wire entanglement before a position
[C18: from French, from abattre to fell]


(ˈæb əˌti, -tɪs, əˈbæt i, əˈbæt ɪs)

n., pl. ab•a•tis (ˈæb əˌtiz, əˈbæt iz)
ab•a•tis•es (ˈæb əˌtɪs ɪz, əˈbæt ə sɪz)
a defensive obstacle formed from rows of tree branches, with an end of each branch facing outward toward the enemy.
[1760–70; < French; Old French abateis < Vulgar Latin *abatteticius, derivative of Old French abattre (see abate)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.abatis - a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemyabatis - a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy
line of defence, line of defense - defensive structure consisting of a barrier that can be employed for defense against attack
References in classic literature ?
The besieged had drawn together a pile of black logs and branches of trees, which they had formed into a chevaux-de- frise, making a little circular abatis in front of the entrance to the cave.
Lieutenant Charpentier ordered a clearing made and a circular abatis of underbrush constructed about the camp.
Caption: Re-enactors in the uniform of the Canadian Voltigeurs take shelter behind the bristling hedgehog defence of an abatis, similar to the one that would have been constructed by the fearless company at the Battle of Chateauguay, October 26, 1813.
Likewise, the main gun makes short work of wire obstacles, log cribs, abatis and so forth.
companies Bookham Technology , Cavendish Kinetics, nCipher and Synad (acquired by ST Microelectronics); and Canadian companies Abatis Systems (acquired by Redback Networks), Cambrian Systems (acquired by Nortel Networks), Extreme Packet Devices (acquired by PMC Sierra), FastLane (acquired by Quest Software), Octigabay (acquired by Cray), Tropic Networks, Ubiquity Software (LONDON: UBQ) and ViXS Systems.
The top three scorers who qualified were Marc Ingram of London House, Andy Smith of Bank of Ireland and Peter Priestley of Abatis Limited.
STOKE PARK MASSIV': (From left) Rosie Kay, 14, Ross Abatis, 14, Chris Freestone, 14, Peter Hodgetts, 14, James Hobday, 14, Scott O'Neill, 14, Amarveer Bains, 14, and Zoe Ames, 14; D21186_6.
At the recent AGM of the British Pest Association (BPCA) in Edinburgh, it was agreed that Peter Priestley of Middlesex-based Abatis Ltd continue as President for the forthcoming Association year.
Halfway up the hill lay three rows of abatis, an obstacle composed of felled trees stripped of their leaves and smaller branches with remaining branches sharpened into points.
He put just over pounds 3m into Vancouver-based Abatis and was rewarded with a pounds 181m profit when it was sold last year.
The forest of the Tula Abatis consists mainly of middle-aged and old stands and harvested sites containing dense regeneration (Kurnayev 1980).