Adjective
coxless (not comparable)
(rowing) Not having a cox.
The symmetrical forces also make sculling more efficient than rowing: the double scull is faster than the coxless pair, and the quadruple scull is faster than the coxless four. Source: Internet
Boats are either coxless (straight), bow-coxed (also called bowloaders ), or stern-coxed. Source: Internet