['tєәplein]
[军]垒道(用以架炮之平台)

[ noun ]
level space where heavy guns can be mounted behind the parapet at the top of a rampart
<noun.location>

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

2. (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.
[Webster 1913 Suppl.]