decay是什么意思_decay怎么读_中英文释义(含例句用法)

an inferior state resulting from the process of decaying;"the corpse was in an advanced state of decay"
"the house had fallen into a serious state of decay and disrepair"

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

Verb:

lose a stored charge, magnetic flux, or current;"the particles disintegrated during the nuclear fission process"

fall into decay or ruin;"The unoccupied house started to decay"

undergo decay or decomposition;"The body started to decay and needed to be cremated"

中英词源

decay 腐烂

de-, 向下。-cay, 同-cad, 掉落，词源同case, accident. 引申义腐烂。

decay: decay: [15] The notion underlying decay and its close relative decadence is of a ‘falling off’ from a condition of health or perfection. Decay comes from Old Northern French decair, a descendant of Vulgar Latin *dēcadere, which in turn came from Latin dēcidere, a compound verb formed from the prefix dē- ‘down, off, away’ and cadere ‘fall’ (source of English case and a wide range of related words). Decadence [16] was acquired via the medieval derivative dēcadentia. To the same word-family belongs deciduous [17], from Latin dēciduus, literally denoting the ‘falling off’ of leaves from trees.
=> accident, case, chance, decadence, deciduous
decay (v.): late 15c., "to decrease," from Anglo-French decair, Old North French decair (Old French decheoir, 12c., Modern French déchoir) "to fall, set (of the sun), weaken, decline, decay," from Vulgar Latin *decadere "to fall off," from de- (see de-) + Latin cadere "to fall" (see case (n.1)). Meaning "decline, deteriorate" is c. 1500; that of "to decompose, rot" is from 1570s. Related: Decayed; decaying.
decay (n.): mid-15c., "deterioration, decline in value," from decay (v.). Meaning "gradual decrease in radioactivity" is from 1897.

词态变化

第三人称单数 decays;
过去式 decayed;
过去分词 decayed;
现在分词 decaying;

权威造句

1. When not removed, plaque causes tooth decay and gum disease.: 牙斑如果不清除就会导致牙齿蛀蚀和牙龈疾病。

2. There are problems of urban decay and gang violence.: 存在城市衰败和帮派暴力的问题。

3. The phosphate was deposited by the decay of marine microorganisms.: 海洋微生物腐烂后沉积形成磷酸盐。

4. The landlord had let the building fall into decay .: 房东不管，房子已经破烂不堪。

5. The decay of the meat could have been prevented by proper refrigeration.: 如果经过适当的冷藏,这些肉本来不至于腐烂掉.

近反义词

rot

spoil

相似短语

to decay 衰减

in decay 处于衰败

arrested decay 抑制分解阶段

brightness decay 亮度衰减

environmental decay 环境破坏，环境衰退

decay characteristic 衰变特性

decay coefficient 衰耗系数

decay instability 衰变不稳定性

decay mode 衰变方式，衰变类型，衰变型

decay ooze 腐泥

单词分析

暂无,等待补充.

记忆方法