a device having a revolving hub with radiating blades, for propelling an airplane, ship, etc.
the bladed rotor of a pump that drives the fluid axially.
a wind-driven, usually three-bladed, device that provides mechanical energy, as for driving an electric alternator in wind plants.
Origin of propeller
First recorded in 1770–80; propel
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for propeller
Contemporary Examples of propeller
Historical Examples of propeller
Much of the efficiency of the motor is due to the form and gearing of the propeller.
There are some features, however, which may be safely adopted in propeller selection.
The total weight of the monoplane with engine and propeller is 352 pounds.
The "thrust" of the propeller is also extraordinary, being between 250 and 260 pounds.
The propeller has four blades which are but little wider than a lath.
British Dictionary definitions for propeller
a device having blades radiating from a central hub that is rotated to produce thrust to propel a ship, aircraft, etc
a person or thing that propels
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for propeller
1780, "anything that propels," agent noun from propel. In mechanical sense, 1809, of ships; of flying machines (in a broad, theoretical sense) 1842, in the specific modern sense 1853.
Online Etymology Dictionary, © 2010 Douglas Harper
A device consisting of a set of two or more twisted, airfoil-shaped blades mounted around a shaft and spun to provide propulsion of a vehicle through water or air, or to cause fluid flow, as in a pump. The lift generated by the spinning blades provides the force that propels the vehicle or the fluid-the lift does not have to result in an actual upward force; its direction is simply parallel to the rotating shaft.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.