/ Dictionary / Index F feeder line: Meaning and Definition of Find definitions for: feed'er line" Pronunciation: [key] a branch of a main transportation line, as of an airline or railroad. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. feeder feeder road Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language