後輪
Trailing \Trail"ing\, a. & vb. n. from {Trail}. {Trailing arbutus}. (Bot.) See under {Arbutus}. {Trailing spring}, a spring fixed in the axle box of the trailing wheels of a locomotive engine, and so placed as to assist in deadening any shock which may occur. --Weale. {Trailing wheel}, a hind wheel of a locomotive when it is not a driving wheel; also, one of the hind wheels of a carriage.