Word · Frequency #22882
fallout
放射性沉降物；原子尘
the radioactive particles that settle to the ground after a nuclear explosion
- 1.
The event of small airborne particles falling to the ground in significant quantities as a result of major industrial activity, volcano eruption, sandstorm, nuclear explosion, etc.
由于重大工业活动、火山喷发、沙尘暴、核爆炸等导致大量空气悬浮颗粒物落至地面的现象。
- 2.
the radioactive particles that settle to the ground after a nuclear explosion
核爆炸后沉降到地面的放射性微粒
- 3.
The particles themselves.
这些颗粒物本身。
- 4.
any adverse and unwanted secondary effect
任何不利和不想要的次要影响
- 5.
A negative side effect; an undesirable or unexpected consequence.
负面影响；不良或意外的后果。
- 6.
An impromptu guest used to fill in for another guest spot who is a no-show or who has cancelled last minute.
临时顶替的嘉宾,用于填补因未到场或临时取消的嘉宾空缺。
由于重大工业活动、火山喷发、沙尘暴、核爆炸等导致大量空气悬浮颗粒物落至地面的现象。；核爆炸后沉降到地面的放射性微粒；这些颗粒物本身。；任何不利和不想要的次要影响；负面影响；不良或意外的后果。
In use
The documentary explained how radioactive fallout from a nuclear explosion can pollute water and soil.
People living near the nuclear power plant were told to stay indoors to avoid the radioactive fallout in the air.
Scientists are still measuring the fallout that settled over the area decades ago.
a strategy to contain the fallout from the accounting scandal
fallout from [source]
本义指核爆炸或核事故后沉降到地面的放射性微尘，通常不可数。
Fallout from the reactor leak spread across the region.
反应堆泄漏产生的放射性沉降物扩散到整个地区。
the fallout from [event]
引申义指事件带来的不良后果或影响，常用‘the fallout from …’结构。
Connections
Collocations
- nuclear fallout
- 核爆炸后的放射性尘埃
- People were told to stay indoors to avoid nuclear fallout.人们被告知待在室内以避免核爆炸后的放射性尘埃。
- fallout shelter
- 防辐射掩蔽所
- During the Cold War, many families built fallout shelters in their backyards.冷战期间，许多家庭在后院修建了防辐射掩蔽所。
- fallout zone
- 放射性沉降区
- The area downwind of the test site became a fallout zone.试验场下风向的地区变成了放射性沉降区。
- exposure to fallout
- 暴露于放射性沉降物
- Long-term exposure to fallout can cause serious health problems.长期暴露于放射性沉降物可能导致严重的健康问题。
- fallout contamination
- 放射性沉降物污染
- The government monitored fallout contamination in crops.政府监测了农作物中的放射性沉降物污染。
Learner notes
Memory Tip
联想：炸弹爆炸后，放射性尘埃从空中“落下来”(fall out)散落地面，fallout就是这些沉降物。
Context & Register
语域：formal 常见场景：核物理讨论、科技报道、环境评估 该义指核爆炸后沉降到地面的放射性微粒，属于科技性较强的术语，通常见于核物理、环境科学或相关新闻报道；日常口语中较少使用。
Pronunciation & Spelling
These words all end with /aʊt/, matching the final sound of 'fallout' (/ˈfɔˌlaʊt/). But be careful: 'fault' (/fɔːlt/) and 'allot' (/əˈlɒt/) look similar in spelling but do not rhyme.
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.