ferrule

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++fer·rule /ˈferuːl, ˈferəl $ ˈferəl/ noun [countable] technical  a piece of metal or rubber put on the end of a stick to make it stronger 〔杖、杆等末端的〕金属包箍，橡皮包头

Examples from the Corpus

ferrule• The staff itself is of snakewood, tipped with two inch deep silver ferrules.• It seemed he had just lost the ferrule of his stick.• 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.• The ferrule was well-formed, with no sharp edges.Origin ferrule (1600-1700) verrel ((15-19 centuries)) (influenced by Latin ferrum “iron”), from Latin viriola “small band worn around the arm”

fer·rule nounChineseSyllable  

the Corpus rubber of on or a put piece metal

ferrule
fer‧rule /ˈferuːl, ˈferəl $ ˈferəl/ noun [countable] technicala piece of metal or rubber put on the end of a stick to make it stronger

fer·ruleBrE /ˈferuːl/ 🔊NAmE /ˈferəl/ 🔊 nouna piece of metal or rubber that covers the end of an umbrella or a stick to protect it （棍杖、伞顶端的）金属包箍，橡皮包头