(assumed tropical:) Loquacious: or loud in voice: (TA:) and ↓رَغْوَانُ is [synonym therewith, or nearly so, being] a surname of Mujáshi' (K, TA) the son of Dárim, (TA,) because of his eloquence, (K, TA,) and the loudness of his voice. (TA.)
2.
Also A certain bird, (K, TA,) that cries much and uninterruptedly; (TA;) of the kind calledدُخَّل; dust-coloured: its crying is termed ↓رُغَاءٌ: and the plural is رَغَّااتٌ. (En-Nadr, TA.)