رعد

سَحَابٌ رَاعِدٌ ذ [ Thundering clouds ]: and سَحَابَةٌ رَاعِدَةٌ [ a thundering cloud ]: (A:) pl. of the fem. رَوَاعِدُ. (Ham p. 440.) [See an ex. in a verse cited voce اـِمَّا.] صَلَفٌ تَحْتَ الرَّاعِدَةِ [ A lack, or paucity, of rain beneath the thundering cloud ], (S, K,) or رُبَّ صَلِفٍ تَحْتَ الرَّاعِدَةِ, (S and K &c. in art. صلف,) or رُبَّ صَلَفٍ (A, and S and K &c. in art. صلف,) [i. e., accord. as we read صَلِفٍ or صَلَفٍ, Many a cloud lacking, or having little, rain, or oftentimes a lack, or paucity, of rain, is there beneath the thundering cloud, ] is a prov., (A,) applied to a loquacious man destitute of good: (S, A, K:) or to a loquacious man who speaks much of that which he has not done: (Nh, TA:) or to one who threatens and does not perform: (S and O and K in art. صلف:) or to the wealthy niggard: (A'Obeyd, K in that art.:) or to him who praises himself much and is destitute of good. (IDrd, K in that art.) ― -b2- See also رَعْدٌ, in two places.