[ter-pleyn, ter-uh-] 
| the top platform or horizontal surface of a rampart where guns are mounted. |
| ter·re·plein (těr'ə-plān') n. A platform or level ground surface on which heavy guns are mounted. [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).] |
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