أَسْوَسُ
1.
A beast having the disease termed
سَوَسٌ. (K.) [Freytag, misled by an ambiguity in the K, assigns to it a signification belonging to سَوَسٌ.]
2.
Also, [or أَسْوَسٌ, unless originally an epithet,] A kind of stone upon which is generated the salt called
زَهْرَةُ أَسْوَس: the author of the “ Minháj ” says that this may be caused by the moisture and dew of the sea falling upon it. (TA in article سيس.)