A short-lived, radioactive synthetic transuranic element produced from californium and having isotopes with mass numbers255 through260 and half-lives of a few seconds to three minutes; atomic number103.

• 铹一种寿命期短的、人工合成的放射性超铀元素，从锎中生成，有质量从255到260的同位素，半衰期从几秒钟到三分钟；原子序数103