The Collaborative International Dictionary
Balistraria
Balistraria \Bal`is*tra"ri*a\, n. [LL.] (Anc. Fort.)
A narrow opening, often cruciform, through which arrows might
be discharged.
--Parker.
[1913 Webster] ||
Wiktionary
balistraria
n. (context historical English) A narrow opening, often cruciform, through which arrows can be fired.
Usage examples of "balistraria".
The window was not much wider than a balistraria, but the ray of light clearly showed Ceteol’s white face.
Gusts of water slashed through the balistraria, washing across the stones.