'Simoon' definitions:

Definition of 'simoon'

From: WordNet
noun
A violent hot sand-laden wind on the deserts of Arabia and North Africa [syn: simoom, simoon, samiel]

Definition of 'Simoon'

From: GCIDE
  • 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. [1913 Webster]