CONTRAVALLATION Con`tra*val*la"tion, n. Etym: [Pref. contra- + vallation: cf. F. contrevallation. Cf. Countervallation.] (Fort.)

Defn: A trench guarded with a parapet, constructed by besiegers, to secure themselves and check sallies of the besieged.

CONTRAVENE
Con`tra*vene", v. t. [imp. & p.p. Contravened; p.pr. & vb.n.
Contravening.] Etym: [LL. contravenire; L. contra + venire to come:
cf. F. contrevenir. See Come.]

1. To meet in the way of opposition; to come into conflict with; to oppose; to contradict; to obstruct the operation of; to defeat. So plain a proposition . . . was not likely to be contravened. Southey.

2. To violate; to nullify; to be inconsistent with; as, to contravene a law. Laws that place the subjects in such a state contravene the first principles of the compact of authority. Johnson.

Syn. — To contradict; set aside; nullify; defeat; cross; obstruct; baffle; thwart.

CONTRAVENER
Con`tra*ven"er, n.

Defn: One who contravenes.

CONTRAVENTION
Con`tra*ven"tion, n. Etym: [Cf.F. contravention.]

Defn: The act of contravening; opposition; obstruction;
transgression; violation.
Warrants in contravention of the acts of Parliament. Macaulay.
In contravention of all his marriage stipulations. Motley.