资料来源 : pyDict

稀少;稀疏;薄

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Sparseness \Sparse"ness\, n.
   The quality or state of being sparse; as, sparseness of
   population.

资料来源 : WordNet®

sparseness
     n : the property of being scanty or scattered; lacking denseness
         [syn: {spareness}, {sparsity}]