I. ˈbər-bəl intransitive verb
( bur·bled ; bur·bling -b(ə-)liŋ)
Etymology: Middle English
Date: 14th century
1. : to make a bubbling sound
2. : babble , prattle
• bur·bler -b(ə-)lər noun
II. noun
Date: 1898
1. : prattle
2. : the breaking up of the smooth flow of air about a body (as an airplane wing)
• bur·bly -b(ə-)lē adjective