سواس doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 4 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• سَوَاسٌ

  سَوَاسٌ ذ A certain kind of tree: n. un. with ة: (M, K:) AHn says, (M, TA,) on the authority of Aboo-Ziyád, (TA,) it is of the kind called عِضَاه, resembling the مَرْخ, having a pericarp like that of the مرخ, (M, TA,) wi…

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• سُوَاسٌ

  سُوَاسٌ ذ A certain disease in the necks of horses, rendering them rigid, (ISh, K, TA,) so that they die. (ISh, TA.)…

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• سَوَاسٍ

  سَوَاسٍ ذ (with the article السَّوَاسِى): see سَوَاسٌ. -A2- And for the same word, and سَوَاسِوَةٌ and سَوَاسِيَةٌ: see art. سوى.…

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• سَوَاسٍ

  سَوَاسٍ ذ and سَوَاسِوَةٌ and سَوَاسِيَةٌ: see سَوَآءٌ, in the latter half of the paragraph; the last of them in three places.…

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