decay
de
dÉĒ
di
cay
ˈkeÉĒ
kei
/dÉĒˈkeÉĒ/

āχāĻ‚āϰ⧇āϜāĻŋāϤ⧇ "decay"āĻāϰ āϏāĻ‚āĻœā§āĻžāĻž āĻ“ āĻ…āĻ°ā§āĻĨ

01

āĻĒāϚāĻž, āĻŦāĻŋāϝāĻŧā§‹āϜāĻŋāϤ āĻšāĻ“āϝāĻŧāĻž

to be gradually damaged or destroyed as a result of natural processes
Intransitive
āωāĻĻāĻžāĻšāϰāĻŖ
The old building is currently decaying due to weathering.
āĻĒ⧁āϰāĻžāύ⧋ āĻŦāĻŋāĻ˛ā§āĻĄāĻŋāĻ‚āϟāĻŋ āĻŦāĻ°ā§āϤāĻŽāĻžāύ⧇ āφāĻŦāĻšāĻžāĻ“āϝāĻŧāĻžāϰ āĻ•āĻžāϰāϪ⧇ āĻ•ā§āώāϝāĻŧ āĻšāĻšā§āϛ⧇āĨ¤
1.1

āĻ•ā§āώāϝāĻŧ āĻšāĻ“āϝāĻŧāĻž, āĻŦāĻŋāĻ˜ā§āύāĻŋāϤ āĻšāĻ“āϝāĻŧāĻž

(of a structure or an area) to become worse gradually
Intransitive
to decay definition and meaning
āωāĻĻāĻžāĻšāϰāĻŖ
The abandoned buildings slowly decayed over time.
āĻĒāϰāĻŋāĻ¤ā§āϝāĻ•ā§āϤ āĻ­āĻŦāύāϗ⧁āϞāĻŋ āϏāĻŽāϝāĻŧ⧇āϰ āϏāĻžāĻĨ⧇ āϏāĻžāĻĨ⧇ āϧ⧀āϰ⧇ āϧ⧀āϰ⧇ āĻ•ā§āώāϝāĻŧ āĻšāϝāĻŧ⧇ āϗ⧇āϛ⧇āĨ¤
02

āĻĒāϚāĻž, āĻ•ā§āώāϤāĻŋ āĻ•āϰāĻž

to cause gradual destruction or damage of something
Transitive: to decay sth
āωāĻĻāĻžāĻšāϰāĻŖ
Moisture and lack of ventilation can decay wooden furniture, causing it to warp, mold, and deteriorate over time.
āφāĻ°ā§āĻĻā§āϰāϤāĻž āĻāĻŦāĻ‚ āĻŦāĻžāϝāĻŧ⧁āϚāϞāĻžāϚāϞ⧇āϰ āĻ…āĻ­āĻžāĻŦ āĻ•āĻžāϠ⧇āϰ āφāϏāĻŦāĻžāĻŦāĻĒāĻ¤ā§āϰ āĻĒāĻšā§‡ āϝ⧇āϤ⧇ āĻĒāĻžāϰ⧇, āϏāĻŽāϝāĻŧ⧇āϰ āϏāĻžāĻĨ⧇ āϏāĻžāĻĨ⧇ āĻāϟāĻŋ āĻŦāĻžāρāĻ•āĻž, āĻ›āĻ¤ā§āϰāĻžāĻ• āĻāĻŦāĻ‚ āĻ–āĻžāϰāĻžāĻĒ āĻšāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤
03

āĻ•ā§āώāϝāĻŧ āĻšāĻ“āϝāĻŧāĻž, āĻŦāĻŋāĻšā§āĻ›āĻŋāĻ¨ā§āύ āĻšāĻ“āϝāĻŧāĻž

(of a radioactive substance) undergoe fission or emits radiation, resulting in the transformation of its atomic nucleus into a different element or isotope
Intransitive: to decay into an element or isotope
āωāĻĻāĻžāĻšāϰāĻŖ
Uranium-238 decays into thorium-234 through a process of alpha decay.
āχāωāϰ⧇āύāĻŋāϝāĻŧāĻžāĻŽ-ā§¨ā§Šā§Ž āφāϞāĻĢāĻž āĻ•ā§āώāϝāĻŧ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻŽāĻžāĻ§ā§āϝāĻŽā§‡ āĻĨā§‹āϰāĻŋāϝāĻŧāĻžāĻŽ-ā§¨ā§Šā§Ē-āĻ āĻ•ā§āώāϝāĻŧāĻĒā§āϰāĻžāĻĒā§āϤ āĻšāϝāĻŧāĨ¤
01

a gradual decrease in stored charge, current, or signal strength

āωāĻĻāĻžāĻšāϰāĻŖ
Signal decay over long wires can reduce performance.
02

the gradual process of decline, deterioration, or loss of quality, and the resulting inferior state

āωāĻĻāĻžāĻšāϰāĻŖ
The building showed signs of structural decay.
03

the decomposition or rotting of organic matter

āωāĻĻāĻžāĻšāϰāĻŖ
Tooth decay is a common problem in children.
04

the spontaneous disintegration of a radioactive substance, emitting ionizing radiation

āωāĻĻāĻžāĻšāϰāĻŖ
The half-life of a substance is measured by its decay.

āĻļāĻŦā§āĻĻāϤāĻžāĻ¤ā§āĻ¤ā§āĻŦāĻŋāĻ• āĻ—āĻžāĻ›

decayed
decay
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āĻ…ā§āϝāĻžāĻĒ āĻĄāĻžāωāύāϞ⧋āĻĄ āĻ•āϰ⧁āύ