pro·pel·ler also pro·pel·lor (prə-pĕlər)
A device for propelling an aircraft or boat, consisting of a spinning shaft with radiating angled blades that thrust air or water in the direction opposite the desired direction of travel.
(click for a larger image)propeller
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
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