harmattan

The Harmattan is a dry and dusty West African trade wind. It blows south from Sahara into the Gulf of Guinea between the end of November and the middle of March (winter).On its passage over the desert it picks up fine dust particles (between 0.5 and 10 micrometres). When the Harmattan blows hard, it can push dust and sand all the way to South America.
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Noun
1. a dusty wind from the Sahara that blows toward the western coast of Africa during the winter
(hypernym) wind, air current, current of air

(n.)
A dry, hot wind, prevailing on the Atlantic coast of Africa, in December, January, and February, blowing from the interior or Sahara. It is usually accompanied by a haze which obscures the sun.
  

harmattan
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B: (Biologi) harmatan
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