v. （使）腐烂, 腐朽( decay的第三人称单数 ); 衰败, 衰退, 衰落

n the process of gradually becoming inferior

n a gradual decrease; as of stored charge or current

n the organic phenomenon of rotting

n an inferior state resulting from the process of decaying

n the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation

v lose a stored charge, magnetic flux, or current

v fall into decay or ruin

v undergo decay or decomposition