/ Dictionary / Index S selective transmission: Meaning and Definition of Find definitions for: selec'tive transmis'sion Pronunciation: [key] — Auto. Auto. a transmission in which the available forward and reverse gears may be engaged in any order, without passing progressively through the different changes of gear. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Selective Service System selectivity Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language