- The definition of excelsior is shavings of wood used as packing material.
An example of excelsior is the packing material used to protect fine paintings during shipment.
A gift box filled with excelsior.Licensed from iStockPhoto
Origin: Classical Latin comparative of excelsus, lofty, high ; from past participle of excellere, excel: excelsior ; from origin, originally use as trademark
Used by arrangement with John Wiley & Sons, Inc.
Origin: Originally a trademark.