Source : Webster's Revised Unabridged Dictionary (1913)

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.

Arbutus \Ar"bu*tus\, Arbute \Ar"bute\, n. [L. arbutus, akin to
   arbor tree.]
   The strawberry tree, a genus of evergreen shrubs, of the
   Heath family. It has a berry externally resembling the
   strawberry; the arbute tree.

   {Trailing arbutus} (Bot.), a creeping or trailing plant of
      the Heath family ({Epig[ae]a repens}), having white or
      usually rose-colored flowers with a delicate fragrance,
      growing in small axillary clusters, and appearing early in
      the spring; in New England known as {mayflower}; -- called
      also {ground laurel}. --Gray.

Source : WordNet®

trailing arbutus
     n : low-growing evergreen shrub of eastern North America with
         leathery leaves and clusters of fragrant pink or white
         flowers [syn: {mayflower}, {Epigaea repens}]