either of the sides of a pneumatic tyre between the tread and the rim
WordReference Random House Unabridged Dictionary of American English © 2026
side•wall
(sīd′wôl′),USA pronunciation n.
- Automotivethe part of a pneumatic tire between the edge of the tread and the rim of the wheel.
- Buildinga wall that serves as the side of a structure.
- Clothingthe side part of the upper of a shoe.
- 1350–1400; Middle English; see side1, wall
Collins Concise English Dictionary © HarperCollins Publishers::
'sidewall' also found in these entries (note: many are not synonyms or translations):