Dictionary


screw' propel"ler




a rotary propelling device, as for a ship or airplane, consisting of a number of blades that radiate from a central hub and are so inclined to the plane of rotation as to tend to drive a helical path through the substance in which they rotate.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

screw pressscrew thread
See also:

Related Content