Jacob's ladder

Definitions of Jacob's ladder

1. noun

   pinnate-leaved European perennial having bright blue or white flowers
   synonyms: Greek valerian, Polemonium caeruleum, Polemonium van-bruntiae, Polymonium caeruleum van-bruntiae, charity

   type of:

   polemonium

   any plant of the genus Polemonium; most are low-growing often foul-smelling plants of temperate to Arctic regions
2. noun

   (nautical) a hanging ladder of ropes or chains supporting wooden or metal rungs or steps
   synonyms: jack ladder, pilot ladder

   type of:

   ladder

   steps consisting of two parallel members connected by rungs; for climbing up or down