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."