رن

مُرِنَّةٌ ذ is applied as an epithet to birds [app. as meaning Uttering plaintive sounds ]: (S:) and, as also ↓ مِرْنَانٌ, as an epithet to a bow [as meaning twanging ], and so to a cloud (سَحَابَة) [app. as meaning resounding with thunder ]: (M:) and each is applied to a bow [ itself ]; (S, K;) and the latter, to a cloud [ itself ]; as an epithet in which the quality of a subst. is predominant [so as to imply, app., the meaning of resounding with thunder, or because it is hoped that it will resound with thunder, or because it often does so]. (M.)