عرص

عَرَّاصٌ ذ Clouds (سَحَابٌ) having thunder and lightning: (S, O, K:) or having thunder and lightning, without which they are not thus called, in which the lightning is in commotion, or flickering, and which overshadow and approach so as to become like a roof: (O, TA:) or of which the lightning does not cease: (Lh, TA:) and (K) that gleam, or glisten, much, (A, K,) with lightning: (A:) or that lighten at one time, and become concealed at another: (TA:) or which the wind carries to and fro. (O, TA.) ― -b2- Lightning in a state of commotion, or agitation; quivering; flickering; as also ↓ عَرِصٌ and ↓ عَرْصٌ: (K:) or vehemently so, (IDrd, O, TA,) and vehement in its thunder: (TA:) or that gleams, or glistens, much: or that lightens at one time, and becomes unapparent at another; as also ↓ عَرِصٌ and ↓ عَرْصٌ. (Ibn-'Abbád, O.) ― -b3- A pliant spear, (AA, S, O, K, TA,) that vibrates, or quivers, when shaken: (S, * O, * TA:) and so applied to a sword: (AA, S, O, K:) or, applied to a spear, it signifies of which, when it is shaken, the head glistens; from عَرِصَ البَرْقُ. (Ibn-'Abbád, O, TA.)