from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A platform or level ground surface on which heavy guns are mounted.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A level space, often at the top of a rampart, and behind a parapet, on which artillery can be mounted
from the GNU version of the Collaborative International Dictionary of English
- n. The top, platform, or horizontal surface, of a rampart, on which the cannon are placed. See Illust. of casemate.
- n. An embankment of earth with a broad level top, which is sometimes excavated to form a continuation of an elevated canal across a valley.
from The Century Dictionary and Cyclopedia
- n. In fortification, the top, platform, or horizontal surface of a rampart, on which the cannon are placed.
- n. The plane of site or level surface around a field-work.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. level space where heavy guns can be mounted behind the parapet at the top of a rampart
French terreplein, from Italian terrapieno, from terrapienare, to fill with earth : terra, earth (from Latin; see ters- in Indo-European roots) + pieno, full (from Latin plēnus; see pelə-1 in Indo-European roots).(American Heritage® Dictionary of the English Language, Fourth Edition)