Noun:

1. a soft sheepskin leather that is colored and finished to resemble morocco; used in bookbinding

2. a horse having a brownish coat thickly sprinkled with white or gray

Adjective:

1. (used of especially horses) having a brownish coat thickly sprinkled with white or grey;

   "a roan horse"
   

roarv.吼叫；咆哮n.吼声；咆哮；轰鸣；喧闹roamv.漫游；闲逛；徜徉Roanen.罗恩Roani罗阿尼Roano罗阿诺Roannan.罗安娜Roannen.罗阿讷(在法国；东经 4º05' 北纬 46º02')Roangar罗安加尔Roanoken.洛亚诺克roannes[法]罗昂床单布Roander罗安德Roanwelln.罗恩韦尔

1. He had just bought a roan.
   他刚刚买到一匹杂色马。