sliding seat(n = noun.artifact) Array - rower's seat that slides fore and aft; Array
is a kind of seat
is a part of racing shell, shell

back seat, balloon seat, bell seat, bicycle seat, box seat, bucket seat, car seat, country seat, county seat, death seat, ejection seat, ejector seat, hot seat, jump seat, love seat, mercy seat, plane seat, potty seat, ringside seat, rumble seat, seat, seat belt, seat cushion, sliding, sliding door, sliding keel, sliding scale, sliding window, tiered seat, toilet seat, window seat