sectional
1. sec.tion.al \'sek-shn*l, -sh*n-*l\ \-e-\ aj 1a: of or relating to a
section 1b: local or regional rather than general in character {~ interest
s} 2: consisting of or divided into sections {~ furniture} -
sec.tion.al.ly av
2. sectional n : a piece of furniture made up of modular units capable of
use separately or in various combinations
Webster's English Dictionary