Abacus

Abacus, in architecture, is a tablet crowning a column and its capital. The flat slab on top of the capital supports the architrave.

Abacus is also an oblong frame with rows of wires or grooves with beads. The beads are slid along the wire while calculating.

Nearby pages
Abadan, Abaddon, Abakan, Abalone, Abandonment, Abandonware