DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   tan
       adj 1: of a light yellowish-brown color
       n 1: a browning of the skin resulting from exposure to the rays
            of the sun [syn: tan, suntan, sunburn, burn]
       2: a light brown the color of topaz [syn: tan, topaz]
       3: ratio of the opposite to the adjacent side of a right-angled
          triangle [syn: tangent, tan]
       v 1: treat skins and hides with tannic acid so as to convert
            them into leather
       2: get a tan, from wind or sun [syn: tan, bronze]