sculling

from WordNet (r) 3.0 (2006)

sculling
    n 1: rowing by a single oarsman in a racing shell

from The Collaborative International Dictionary of English v.0.48

Scull \Scull\, v. t. [imp. & p. p. {Sculled}; p. pr. & vb. n.
   {Sculling}.] (Naut.)
   To impel (a boat) with a pair of sculls, or with a single
   scull or oar worked over the stern obliquely from side to
   side.
   [1913 Webster]