The Collaborative International Dictionary of English v.0.48:

Leatherwood \Leath"er*wood`\, n. (Bot.)
   A small branching shrub (Dirca palustris), with a white,
   soft wood, and a tough, leathery bark, common in damp woods
   in the Northern United States; -- called also moosewood,
   and wicopy. --Gray.
   [1913 Webster]

WordNet (r) 3.0 (2006):

leatherwood
    n 1: shrub or small tree of southeastern United States to West
         Indies and Brazil; grown for the slender racemes of white
         flowers and orange and crimson foliage [syn: cyrilla,
         leatherwood, white titi, Cyrilla racemiflora]
    2: deciduous shrub of eastern North America having tough
       flexible branches and pliable bark and small yellow flowers
       [syn: leatherwood, moosewood, moose-wood, wicopy,
       ropebark, Dirca palustris]