half-life

📖 中文释义

  1. n. 半衰期, 半排出期
  2. [化] 半衰期; 半寿期

🔗 释义中的汉语词

🧩 词形变化

复数 half-lives
📘 English Definition(英文释义)
  1. n the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)