n. 哈麦丹风

[ noun ]
a dusty wind from the Sahara that blows toward the western coast of Africa during the winter
<noun.phenomenon>

Harmattan \Har*mat"tan\ (h[aum]r*m[a^]t"tan), n. [F. harmattan,
prob. of Arabic origin.]
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.

Sirocco \Si*roc"co\ (s[i^]*r[o^]k"k[-o]), n.; pl. {Siroccos}
(s[i^]*r[o^]k"k[=o]z). [It. sirocco, scirocco, Ar. shorug,
fr. sharq the rising of the sun, the east, fr, sharaca to
rise as the sun. Cf. {Saracen}.]
1. An oppressive, relaxing wind from the Libyan deserts,
chiefly experienced in Italy, Malta, and Sicily.

2. In general, any hot dry wind of cyclonic origin, blowing
from arid or heated regions, including the desert wind of
Southern California, the {harmattan} of the west coasts of
Africa, the hot winds of Kansas and Texas, the {kamsin} of
Egypt, the {leste} of the Madeira Islands, and the
{leveche} of Spain.
[Webster 1913 Suppl.]