also: オフィスチェアー
noun
office chair; desk chair; computer chair
A chair designed for office or desk work, often with adjustable height and wheels.
新しいオフィスチェアを買ったら、腰痛が楽になった。
After I bought a new office chair, my back pain improved.
このオフィスチェアは肘掛けが調整できます。
This office chair has adjustable armrests.
Wasei-eigo (Japanese-made English) from 'office' + 'chair'.