/ Dictionary / Index P payloader: Meaning and Definition of Find definitions for: pay•load•er Pronunciation: (pā'lō"dur), [key] — n. a heavy, wheeled vehicle with a large, movable blade or scoop at the front. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. payload bay payload specialist Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language