sidepiece

enUK

side·piece

S0389700 (sīd′pēs′)n. A part forming the side of something else: a chair with curved sidepieces.

sidepiece

(ˈsaɪdˌpiːs) na part forming the side of something

side•piece

(ˈsaɪdˌpis)

n. a piece forming a side or a part of a side of something. [1795–1805]