susurrous

from WordNet (r) 3.0 (2006)

susurrous
    adj 1: characterized by soft sounds; "a murmurous brook"; "a
           soughing wind in the pines"; "a slow sad susurrous rustle
           like the wind fingering the pines"- R.P.Warren [syn:
           {murmurous}, {rustling}, {soughing}, {susurrous}]

from The Collaborative International Dictionary of English v.0.48

Susurrous \Su*sur"rous\, a. [L. susurrus.]
   Whispering; rustling; full of whispering sounds. [R.]
   [1913 Webster]