ˈbæb.l̩ ˈbʌb.əl ˈɡəː.ɡəl ˈɡɝ.ɡəl ˈɹʌfəl ˈʌndjəleɪt stir up (water) so as to form ripples flow in an irregular current with a bubbling noise babbling brooks a small wave on the surface of a liquid (electronics) an oscillation of small amplitude imposed on top of a steady value