英语词汇“decay”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

de•cay v.

Microbiologyto (cause to) become decomposed;
rot: [ no obj]:The tree began to decay soon after it was cut down.[ ~ + obj]:Candy can decay your teeth.
[no obj] to decline in health or prosperity;
deteriorate:The transit system is rapidly decaying.

n. [uncountable]

Microbiologydecomposition;
rot:The house is in a state of decay.
a gradual and continuing decline:the decay of standards.

de•cayed, adj.: decayed timber.
de•cay•ing, adj.: the smell of decaying vegetation.

de•cay v.i.

Microbiologyto become decomposed; rot:vegetation that was decaying.
to decline in excellence, prosperity, health, etc.;
deteriorate.
Physics(of a radioactive nucleus) to change spontaneously into one or more different nuclei in a process in which atomic particles, as alpha particles, are emitted from the nucleus, electrons are captured or lost, or fission takes place.

v.t.

Microbiologyto cause to decay or decompose;
rot:The dampness of the climate decayed the books.

Microbiologydecomposition;
rot:Decay made the wood unsuitable for use.
a gradual falling into an inferior condition;
progressive decline:the decay of international relations; the decay of the Aztec civilizations.
decline in or loss of strength, health, intellect, etc.:His mental decay is distressing.
PhysicsAlso called disintegration, radioactive decay. a radioactive process in which a nucleus undergoes spontaneous transformation into one or more different nuclei and simultaneously emits radiation, loses electrons, or undergoes fission.
Aerospacethe progressive, accelerating reduction in orbital parameters, particularly apogee and perigee, of a spacecraft due to atmospheric drag.

Vulgar Latin *cadēre, for Latin cadere; (noun, nominal) late Middle English, derivative of the verb, verbal
Old North French decair, equivalent. to de- de- + cair to fall
(verb, verbal) late Middle English decayen 1425–75

de•cay′a•ble, adj.
de•cayed•ness adj. de•cay′less, adj.

1.See corresponding entry in Unabridged degenerate, wither; putrefy. Decay, decompose, disintegrate, rot imply a deterioration or falling away from a sound condition. Decay implies either entire or partial deterioration by progressive natural changes:Teeth decay.Decompose suggests the reducing of a substance to its component elements:Moisture makes some chemical compounds decompose.Disintegrate emphasizes the breaking up, going to pieces, or wearing away of anything, so that its original wholeness is impaired:Rocks disintegrate.Rot is a stronger word than decay and is esp. applied to decaying vegetable matter, which may or may not emit offensive odors:Potatoes rot.
5.See corresponding entry in Unabridged putrefaction.
7.See corresponding entry in Unabridged deterioration, decadence, impairment, dilapidation, degeneration.

decay /dɪˈkeɪ/ vb

to decline or cause to decline gradually in health, prosperity, excellence, etc; deteriorate; waste away
to rot or cause to rot as a result of bacterial, fungal, or chemical action; decompose
Also: disintegrate (intransitive) (of an atomic nucleus) to undergo radioactive disintegration
(of an elementary particle) to transform into two or more different elementary particles
(intransitive) (of a stored charge, magnetic flux, etc) to decrease gradually when the source of energy has been removed

the process of decline, as in health, mentality, beauty, etc
the state brought about by this process
decomposition, as of vegetable matter
rotten or decayed matter
See radioactive decay
a spontaneous transformation of an elementary particle into two or more different particles
a gradual decrease of a stored charge, magnetic flux, current, etc, when the source of energy has been removed

Etymology: 15th Century: from Old Northern French decaïr, from Late Latin dēcadere, literally: to fall away, from Latin cadere to fall

deˈcayable adj

单词	decay
释义	WordReference Random House Learner's Dictionary of American English © 2024 de•cay /dɪˈkeɪ/USA pronunciation v. Microbiologyto (cause to) become decomposed; rot: [ no obj]:The tree began to decay soon after it was cut down.[ ~ + obj]:Candy can decay your teeth. [no obj] to decline in health or prosperity; deteriorate:The transit system is rapidly decaying. n. [uncountable] Microbiologydecomposition; rot:The house is in a state of decay. a gradual and continuing decline:the decay of standards. de•cayed, adj.: decayed timber. de•cay•ing, adj.: the smell of decaying vegetation. WordReference Random House Unabridged Dictionary of American English © 2024 de•cay (di kā′),USA pronunciation v.i. Microbiologyto become decomposed; rot:vegetation that was decaying. to decline in excellence, prosperity, health, etc.; deteriorate. Physics(of a radioactive nucleus) to change spontaneously into one or more different nuclei in a process in which atomic particles, as alpha particles, are emitted from the nucleus, electrons are captured or lost, or fission takes place. v.t. Microbiologyto cause to decay or decompose; rot:The dampness of the climate decayed the books. n. Microbiologydecomposition; rot:Decay made the wood unsuitable for use. a gradual falling into an inferior condition; progressive decline:the decay of international relations; the decay of the Aztec civilizations. decline in or loss of strength, health, intellect, etc.:His mental decay is distressing. PhysicsAlso called disintegration, radioactive decay. a radioactive process in which a nucleus undergoes spontaneous transformation into one or more different nuclei and simultaneously emits radiation, loses electrons, or undergoes fission. Aerospacethe progressive, accelerating reduction in orbital parameters, particularly apogee and perigee, of a spacecraft due to atmospheric drag. Vulgar Latin *cadēre, for Latin cadere; (noun, nominal) late Middle English, derivative of the verb, verbal Old North French decair, equivalent. to de- de- + cair to fall (verb, verbal) late Middle English decayen 1425–75 de•cay′a•ble, adj. de•cayed•ness (di kād′nis, -kā′id-),USA pronunciation adj. de•cay′less, adj. 1.See corresponding entry in Unabridged degenerate, wither; putrefy. Decay, decompose, disintegrate, rot imply a deterioration or falling away from a sound condition. Decay implies either entire or partial deterioration by progressive natural changes:Teeth decay.Decompose suggests the reducing of a substance to its component elements:Moisture makes some chemical compounds decompose.Disintegrate emphasizes the breaking up, going to pieces, or wearing away of anything, so that its original wholeness is impaired:Rocks disintegrate.Rot is a stronger word than decay and is esp. applied to decaying vegetable matter, which may or may not emit offensive odors:Potatoes rot. 5.See corresponding entry in Unabridged putrefaction. 7.See corresponding entry in Unabridged deterioration, decadence, impairment, dilapidation, degeneration. Collins Concise English Dictionary © HarperCollins Publishers:: decay /dɪˈkeɪ/ vb to decline or cause to decline gradually in health, prosperity, excellence, etc; deteriorate; waste away to rot or cause to rot as a result of bacterial, fungal, or chemical action; decompose Also: disintegrate (intransitive) (of an atomic nucleus) to undergo radioactive disintegration (of an elementary particle) to transform into two or more different elementary particles (intransitive) (of a stored charge, magnetic flux, etc) to decrease gradually when the source of energy has been removed n the process of decline, as in health, mentality, beauty, etc the state brought about by this process decomposition, as of vegetable matter rotten or decayed matter See radioactive decay a spontaneous transformation of an elementary particle into two or more different particles a gradual decrease of a stored charge, magnetic flux, current, etc, when the source of energy has been removed Etymology: 15th Century: from Old Northern French decaïr, from Late Latin dēcadere, literally: to fall away, from Latin cadere to fall deˈcayable adj
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