衰变 shuāi biàn

radioactive decay

Word data

HSK Not in HSK
Frequency 37787th word

Definitions

  1. 1. radioactive decay

Characters

Character Meaning
衰 shuāi HSK 6
to decline; to become weak or feeble; to wane
变 biàn HSK 3
to change; to become different; to transform