سواف doesn't appear in Hans Wehr's Modern Standard Arabic dictionary, but Lane's Arabic-English Lexicon has 2 entries for it, distinguished by diacritics. Select one below for the full classical Arabic definition.

• سَوَافٌ

  سَوَافٌ ذ The [cucumber commonly called] قِثَّآء [q. v.]: (M, K, TA:) so says AHn, (M, TA,) on the authority of Et-Toosee. (TA.) -A2- See also what next follows.…

  View in Lane's Lexicon →

• سُوَافٌ

  سُوَافٌ ذ and ; with damm accord. to As, and so, he says, all the names of diseases, as نُحَازٌ and دُكَاعٌ and قُلَابٌ and خُمَالٌ [&c.]; accord. to AA, not so, but with fet-h, and in like manner said 'Omárah Ibn-'Akeel…

  View in Lane's Lexicon →