Voluble

Part of speech: adjective (a.)

1. Easily rolling or turning; easily set in motion; apt to roll; rotating; as, voluble particles of matter.

2. Moving with ease and smoothness in uttering words; of rapid speech; nimble in speaking; glib; as, a flippant, voluble, tongue. [Cassio,] a knave very voluble. Shak.

3. Changeable; unstable; fickle. [Obs.]

4. Having the power or habit of turning or twining; as, the voluble stem of hop plants. Voluble stem (Bot.), a stem that climbs by winding, or twining, round another body. -- Vol"u*ble*ness, n. -- Vol"u*bly, adv.