Pneumatic tire is described as a circular tube of rubber or synthetic rubber and fabric, and sometimes also steel, attached to the rim of the car's wheel, having resilience due to its containing air under pressure.
Ref: 120746/2006-10-02
Other Database Pages Exist for this Phrase:
Tire (Tire is characterized as the round rubber that ...)
Pneumatic (Pneumatic means involving "air" as in air-filled ...)