- fortifications a low outwork in the main ditch between two bastions
C16: from French, literally: tongs, from Late Latin tenācula, pl of tenaculum
Examples from the Web for tenaille
Two were placed in the tenaille of the castle, and two were kept in reserve.Annals of a Fortress
Here the main bastions and tenaille are detached from the enceinte.
On the twenty-third the tenaille was stormed, and a lodgement made along the covered way.The History of England in Three Volumes, Vol.II.
The tenaille trace: Flanks back to back between the faces (fig. 16).
Tenaille bastion: Used when the flanked angle is too acute; that is, less than 70.