
1) Rowing
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https://www.crosswordclues.com/clue/sculling

- rowing by a single oarsman in a racing shell
- propel (a boat) with skulls
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On sailboats with transom mounted rudders, forward propulsion is made by a balanced side to side movement of the tiller.
Found on
http://en.wikipedia.org/wiki/Glossary_of_nautical_terms

On sailboats with transom mounted rudders, forward propulsion is made by a balanced side to side movement of the tiller.
Found on
http://en.wikipedia.org/wiki/Glossary_of_nautical_terms

Sculling generally refers to a method of using oars to propel watercraft in which the oar or oars touch the water on both the port and starboard sides of the craft, or over the stern. By extension, the oars themselves are also often referred to as sculls when used in this manner, and the boat itself may be referred to as a scull. ==Two-oar scullin...
Found on
http://en.wikipedia.org/wiki/Sculling

• (p. pr. & vb. n.) of Scull
Found on
http://thinkexist.com/dictionary/meaning/sculling/

in small-craft racing, the use of two oars, one in each handin single, double, and quadruple events. See rowing.[1 related articles]
Found on
http://www.britannica.com/eb/a-z/s/51

Sculling is the impelling of a boat by means of two sculls or small oars, each rowed with one hand. The term is also applied to the propulsion of a boat by means of a long oar from its stern (a scull), where it is worked from side to side with a twist which produces the effect of a screw propeller.
Found on
http://www.probertencyclopaedia.com/browse/RS.HTM

[
n] - rowing by a single oarsman in a racing shell
Found on
http://www.webdictionary.co.uk/definition.php?query=sculling

One of the two types of rowing. In sculling each rower has 2 sculling oars or 2 sculls.
Found on
https://ratislandrowing.com/106-2/basic-rowing-terms/
noun rowing by a single oarsman in a racing shell
Found on
https://www.encyclo.co.uk/local/20974

Rowing with two oars.
Found on
https://www.hrr.co.uk/plan-your-day/guide-to-rowing-and-the-regatta/glossar

Rowing with two oars, one in each hand (an oar rigged on each side of the boat).
Found on
https://www.mercycrew.org/glossary-of-rowing-terms/

One of two disciplines of rowing. Scullers use two oars, or sculls.
Found on
https://www.nbcolympics.com/news/rowing-101-glossary

using two sculls or oars per crew member
Found on
https://www.nswrowers.com/glossary.html

One of the two disciplines of rowing. In sculling each rower uses two oars (one in each hand) to move the boat.
Found on
https://www.row2k.com/features/368/Rowing-Glossary/

Rowing with two oars.
Found on
https://www.trenthamboatclub.co.uk/glossary-of-rowing-terms/
No exact match found.