Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “mushroom cloud”

mushroom cloud

noun [C usually singular] uk   us  
a very large cloud of dust that rises into the air in the shape of a large mushroom, especially after a nuclear explosion: The mushroom cloud over Hiroshima is a horrific image of war.
(Definition of mushroom cloud from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of mushroom cloud?
Browse related topics

You are looking at an entry to do with Bombs & missiles, but you might be interested in these topics from the Weapons and explosives topic area:

Add Cambridge dictionaries to your browser to your website

Translations of “mushroom cloud”

Word of the Day

monster

any imaginary frightening creature, especially one that is large and strange

Word of the Day

What’s that lovely smell?

by Kate Woodford,
October 29, 2014
As adult humans, we can distinguish about 10,000 different smells. It’s no wonder, then, that we have so many words and expressions to describe them. This week we’re taking a look at those smell words – words that describe good smells and words that describe bad smells. Most smell words are either

Read More 

high-frequency trading noun

October 27, 2014
a type of stock market trading that uses very complex technology to trade extremely quickly, often making tiny profits which nevertheless add up to substantial sums Lewis’s book, Flash Boys, is driving a huge amount of attention toward the topic of high frequency trading, and it has rekindled some of

Read More