- ballon d'essai,
Origin of ballium
Examples from the Web for ballium
Barney and the girl remounted and the little cavalcade moved forward through the ballium and the great gate into the court beyond.The Mad King|Edgar Rice Burroughs
Both these castles are enclosed by a court or ballium, with a fortified entrance, like those erected by the Normans.
After these maternal cares, Marjory sat and listened to the proceedings in the ballium of the Castle.
It stands in a ballium or court, surrounded by a moat and an embankment.
We next approach, the ballium, or castle yard through the Porter's Lodge of two towers with a portcullis.