I. -shən ə l, -shnəl adjective
1.
a. : of, relating to, or based upon a section
sectional repair of a tire
a sectional view
sectional drawings
b. : belonging to a distinct part of a larger body (as a society or population) or territory : local or regional rather than general in character
sectional interests
sectional jealousies
a sectional dialect
— compare provincial 2
2.
a. : consisting of or divided into sections
a sectional wire
sectional furniture
b. : designed for construction by assembling a series of component parts
a sectional garage
— see sectional boiler
c. : made up of sections to be added or reduced at will
a sectional bookcase
a sectional dictionary
a sectional sofa
II. noun
( -s )
: a piece of furniture made up of modular units capable of use separately or in various combinations (as a sectional sofa whose parts may be used as chairs)