Webster's 1828 Dictionary
SIMOOM
n.A hot suffocating wind, that blows occasionally in Africa and Arabia, generated by the extreme heat of the parched deserts or sandy plains. Its approach is indicated by a redness in the air, and its fatal effects are to be avoided by falling on the face and holding the breath.
Webster's 1913 Dictionary
SIMOOM; SIMOON
Si *moom ", Si *moon ", n. Etym: [Ar. sam, fr. samma to poison. Cf. Samiel. ]
Defn: 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.
New American Oxford Dictionary
simoom
si moom |siˈmo͞om səˈmum |(also simoon |-ˈmo͞on |) ▶noun a hot, dry, dust-laden wind blowing in the desert, esp. in Arabia. ORIGIN late 18th cent.: from Arabic samūm, from samma ‘to poison. ’
Oxford Dictionary
simoom
simoom |sɪˈmuːm |(also simoon |-muːn |) ▶noun a hot, dry, dust-laden wind blowing in the desert, especially in Arabia. ORIGIN late 18th cent.: from Arabic samūm, from samma ‘to poison ’.
The Wordsmith Dictionary