/ Dictionary / Index J Jacob's ladder: Meaning and Definition of Find definitions for: Ja'cob's lad'der Pronunciation: [key] a ladder seen by Jacob in a dream, reaching from the earth to heaven. Gen. 28:12. Also calledjack ladder, pilot ladder.a hanging ladder having ropes or chains supporting wooden or metal rungs or steps. any ladderlike arrangement aloft other than one of rattled shrouds. Ja•cob's-lad•der Pronunciation: ( jā'kubz-lad'ur), [key] — n. any of various plants belonging to the genus Polemonium, of the phlox family, esp. P. caeruleum (or P. van-bruntiae), having blue, cup-shaped flowers and paired leaflets in a ladderlike arrangement. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jacobsite Jacobson's organ Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language