资料来源 : Webster's Revised Unabridged Dictionary (1913)

Waybread \Way"bread`\, n. [AS. wegbr?de. See {Way}, and
   {Broad}.] (Bot.)
   The common dooryard plantain ({Plantago major}).

资料来源 : WordNet®

Plantago major
     n : common European perennial naturalized worldwide; a
         troublesome weed [syn: {broad-leaved plantain}, {common
         plantain}, {white-man's foot}, {whiteman's foot}, {cart-track
         plant}]