Terre"plein` (?), n. [F., fr. L. terra earth + planus even, level, plain.] (Fort.) The top, platform, or horizontal surface, of a rampart, on which the cannon are placed. See Illust. of Casemate.

Terre"plein (?), n. (Civ. Engin.) An embankment of earth with a broad level top, which is sometimes excavated to form a continuation of an elevated canal across a valley.

Terre"plein` (?), n. [F., fr. L. terra earth + planus even, level, plain.] (Fort.) The top, platform, or horizontal surface, of a rampart, on which the cannon are placed. See Illust. of Casemate.

Terre"plein (?), n. (Civ. Engin.) An embankment of earth with a broad level top, which is sometimes excavated to form a continuation of an elevated canal across a valley.