- [uncountable]
the quality of something, especially a person’s ability 质量；（尤指人的）能力 - [countable]
the measurement from one side of the inside of a tube or gun to the other; the measurement from one side of a bullet to the other （管子、枪炮的）口径，内径；（子弹的）直径，弹径 a high calibre weapon 高口径武器 a .22 calibre bullet 点22口径子弹
Word Originmid 16th cent. (in the sense ‘social standing or importance’): from French, from Italian calibro, perhaps from Arabic qālib ‘mould’, based on Greek kalapous ‘shoemaker's last’.