What is "simoon"

Simoom \Si*moom"\, Simoon \Si*moon"\, n. [Ar. sam?m, fr. samma to poison. Cf. Samiel.] A hot, dry, suffocating, dust-laden wind, that blows occasionally in Arabia, Syria, and neighboring countries, generated by the extreme heat of the parched deserts or sandy plains.

n. (alternative spelling of simoom English)

n. a violent hot sand-laden wind on the deserts of Arabia and North Africa [syn: simoom, samiel]