Home / Dictionary Meaning of screw propeller 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 Related ContentDaily Word Quiz: opprobriumAnalogy of the Day: Today's AnalogySpelling Bee: Today's Spelling BeeKids' Word Quiz: preparatoryCrossword: Crossword Puzzle GuideFrequently Misspelled WordsFrequently Mispronounced WordsEasily Confused WordsWriting & Language Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Download Poptropica and play for free!Explore a limitless universe of uncharted islands