Definition of brown cloud in English:

brown cloud

Syllabification: brown cloud

noun

  • A visible pall of air pollutants that persists over a city or other area: the Asian brown cloud throughout the day, air shifts in the valley cause variances in the brown cloud
    More example sentences
    • Today, that is all gone: no brown cloud, no atmospheric pollution to speak of.
    • One look at the big brown cloud hanging perennially over Toronto and you know Rick Mercer is right: the first instinct is to run.
    • Over everything hangs a brown cloud of pollution that is clearly visible from the hills outside the city.

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Pronunciation: kərf
noun
a slit made by cutting with a saw