Crossword-Solution: SPIRALLY 8 letters, 1 clue 🏆 scrabble score: 13

For a hundred feet the steps wound spirally up, until at a sudden turning Tarzan came into a narrow cleft between two rocky walls.

From the door a stone stair curves upward spirally, passing two landings, and terminating in a third one, its steps all shapeless and hollowed by the tread of so many generations of the seekers after knowledge.

Sometimes termed the “aileron compensating wire.” Wire, Snaking--A wire, usually of soft metal, wound spirally or tied round another wire, and attached at each end to the framework.

Generally speaking, this consists of a motor-driven cylinder having metallic pins placed at intervals, and arranged spirally, around its periphery.

The action of a screw propeller while performing useful work might be compared to a nut traveling on a threaded bolt; little resistance is offered to its forward motion while it spins freely without load, but give it a load to carry; then it will take more power to keep up its speed; if too great a load is applied the thread will strip, and so it is with a screw propeller gliding spirally on the air.