English

Noun

harmattan ‎(plural harmattans)

1. A dry and dusty wind, blowing from the Sahara, prevailing on the Atlantic coast of West Africa in December, January and February.
   • 1959, Chinua Achebe, Things Fall Apart, page 1:

     That was many years ago, twenty years or more, and during this time Okonkwo's fame had grown like a bush-fire in the harmattan.

2. A season which spans the period in which the Harmattan wind blows.

References

• Concise Oxford Dictionary, 5th Edition, 1975 revision
• harmattan at OneLook Dictionary Search