frangible
/ˈfrændʒɪbl/adjective
1- able to be broken into fragments; brittle or fragile易碎的; 脆的; 脆弱的：
the frangible skull of an infant
婴儿易碎的颅骨
figurative 〈喻〉she had kept his frangible mind together through many troubled years.
在这么多动荡的年月中, 她一直没让他脆弱的心灵崩溃。
1.1
- denoting ammunition designed to disintegrate into very small particles on impact（弹药）粉碎性的：
frangible bullets.
粉碎性子弹。
词源
late Middle English: from Old French, or from medieval Latin frangibilis, from Latin frangere 'to break'.