Read Edit View history 鉿 hā hafnium Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 铪/鉿 · hā · hafnium 2026/03/04 铪 / 鉿 hā hafnium hafnium (chemistry) 铪常用于核反应堆的控制棒。 punctuation created sense Mar 4, 2026, 02:25 AM