| 释义 | 
		ferrulefer‧rule /ˈferuːl, ˈferəl $ ˈferəl/ noun [countable] technical    ferruleOrigin: 1600-1700 verrel (15-19 centuries) (influenced by Latin ferrum  ‘iron’), from Latin viriola  ‘small band worn around the arm’  - It seemed he had just lost the ferrule of his stick.
 - The ferrule was well-formed, with no sharp edges.
 - The staff itself is of snakewood, tipped with two inch deep silver ferrules.
 - The umbrella fell to the floor with a sharp crack of the ferrule on the tile.
 - The use of plastic also means that the ferrule will not rust or discolour.
 
    a piece of metal or rubber put on the end of a stick to make it stronger  |