Defn: Irregular or disorderly movement; commotion; as, the tumultuation of the parts of a fluid. [Obs.] Boyle.

TUMULTUOUS
Tu*mul"tu*ous, a. Etym: [L. tumultuosus: cf. F. tumultueux.]

1. Full of tumult; characterized by tumult; disorderly; turbulent. The flight became wild and tumultuous. Macaulay.

2. Conducted with disorder; noisy; confused; boisterous; disorderly; as, a tumultuous assembly or meeting.

3. Agitated, as with conflicting passions; disturbed. His dire attempt, which, nigh the birth Now rolling, boils in his tumultuous breast. Milton.

4. Turbulent; violent; as, a tumultuous speech.

Syn.
— Disorderly; irregular; noisy; confused; turbulent; violent;
agitated; disturbed; boisterous; lawless; riotous; seditious.
— Tu*mul"tu*ous*ly, adv.
— Tu*mul"tu*ous*ness, n.

TUMULUS Tu"mu*lus, n.; pl. Tumuli. Etym: [L., a mound, a sepulchral mound, probably from tumere to swell. Cf. Tumid.]

Defn: An artificial hillock, especially one raised over a grave, particularly over the graves of persons buried in ancient times; a barrow.

TUN
Tun, n. Etym: [AS. tunne. See Ton a weight.]