衰减

衰減

shuāijiǎn

verb HSK 7-9 #32,491

Meanings

1 to weaken
2 to attenuate
3 to decay
4 to diminish

Characters

to decline; to weaken

to reduce; to decrease

Both characters mean 'to decrease' — together they describe gradual weakening

Examples

信号经过长距离传输后会衰减。

Xìnhào jīngguò chángjùlí chuánshū hòu huì shuāijiǎn.

The signal attenuates after long-distance transmission.

随着年龄增长，记忆力会逐渐衰减。

Suízhe niánlíng zēngzhǎng, jìyìlì huì zhújiàn shuāijiǎn.

Memory gradually declines with age.

这种材料的强度不会衰减。

Zhèzhǒng cáiliào de qiángdù bùhuì shuāijiǎn.

The strength of this material does not diminish.

Tips

usage

衰减 is often used in technical and scientific contexts: signal attenuation, radioactive decay, strength degradation. For everyday 'decline', 下降 (xiàjiàng) or 减弱 (jiǎnruò) are more common.

Stroke Order

衰 shuāi

减 jiǎn