عصب

عَصِيبٌ ذ Lights [of an animal] bound round with guts, and then roasted, or broiled: (S, O, K:) pl. [of pauc.] أَعْصِبَةٌ (K) and [of mult.] عُصُبٌ. (S, O, K.) And Such as are twisted, of the guts of a sheep or goat. (TA.) And its pl. عُصُبٌ, Guts of a sheep or goat, folded, and put together, and then put into one of the winding guts of the belly. (L, TA.) -A2- Also, and ↓ عَصَبْصَبٌ A vehement, or severe, day: (Fr, S, O, K:) or a vehemently-hot day: (Fr, K:) and the former is in like manner applied to a night (لَيْلَة), without ة: (TA:) and ↓ the latter signifies also a cold, and very cloudy, day, in which nothing is seen of the sky. (Abu-l- 'Alà, L, TA.)