Definition of "Sectional" :

noun: a piece of furniture made up of sections that can be arranged individually or together

adjective: related or limited to a distinct region or subdivision of a territory or community or group of people

"Sectional tensions arose over slavery."

adjective: consisting of or divided into sections

"A sectional sofa."

adjective: relating to or based upon a section (i.e. as if cut through by an intersecting plane)

"A sectional view."