غم

غَمَامٌ ذ Clouds: (S, Msb, K:) or white clouds: (K:) or thin clouds: (Jel in ii. 54:) and ↓ غَمَامَةٌ signifies one thereof: (S, Msb, K:) the former being pl. of the latter, as also is غَمَائِمُ: (K:) [or rather غَمَامٌ is a coll. gen. n., of which غَمَامَةٌ is the n. un.:] they are so called because they veil the sky, or because they veil the light of the sun. (TA.) ― -b2- [Hence,] حَبُّ الغَمَامِ signifies Hailstones, or hail. (TA.) [See an ex. in a verse cited in art. ان, p. 109.]