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