What does "crossbarred" mean?

Secured by, or furnished with, crossbars.

What is a synonym for "crossbarred"?

Common synonyms include: barred, grated, laced, lacy, meshed, netted.

adj

adj ·Rare ·Advanced level

Adjective

1
Secured by, or furnished with, crossbars. not-comparable
"doors, crossbarred and fast bolted"
2
Made or patterned in lines crossing each other. not-comparable
"crossbarred muslin"

"doors, crossbarred and fast bolted"

From crossbar + -ed.