Breadcrumb Home > Dictionary > Index S Cite screw propeller: Meaning and Definition of Find definitions for: screw' propel"ler Pronunciation: [key] 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 press screw thread TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News The Holocaust (1933–1945) Chinese New Year History, Meaning, and Celebrations Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 Inaugural Trivia Related Content Daily Word Quiz: nonpareil Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language