الفَاسِيَةُ

(S, M, K) and ↓ الفَاسِيَاءُ (M, K) and ↓ الفَسَّاءَةُ (TA) The [beetle called] خُنْفَسَاء; (S, M, K;) which emits a noiseless wind, and makes the party to stink by its foul odour: (M:) the plural of the first is الفَوَاسِى. (TA.) Hence the prov., أَفْحَشُ مِنْ فَاسِيَةٍ i. e. [More foul than] a خنفساء. (S, M.)