propugnaculum

prōpūgnāculum ī, n

propugno, a bulwark, tower, rampart, fortress, defence : ut propugnaculo ceteris (navis) esset: pontīs et propugnacula iungunt, V.: Siciliae, i. e. the fleet : navium, i. e. ships furnished with towers , H.: oppositum barbaris, N.: moenium, Ta.—Fig., a bulwark, protection, defence : lex Aelia et Fufia propugnacula tranquillitatis: tyrannidis propugnacula, N.: firmissimo propugnaculo uti, quod, etc., as his strongest plea , L.