Dictionary
bal•is•tra•ri•a
Pronunciation: (bal"u-strâr'ē-u), [key]—
n.,
—pl. -is•tra•ri•aePronunciation: (-u-strâr'ē-ē"). [key]
(in a medieval fortification) an opening, usually in the form of a cross, through which a crossbow could be fired.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.