cancellus

< /kænˈsɛl aɪ, -ˈsɛl i/. Architecture.

1. (in an early Christian basilica) one of a row of bars separating the clergy and sometimes the choir from the congregation.
2. (in an ancient Roman basilica) one of a row of bars separating the court personnel from the spectators.
3. cancelli, a screen of such bars.

n. pl. can•cel•li (-lī′)

1. A latticelike structure, such as spongy bone.