barbicann.
英 'bɑːbɪk(ə)n | 美
中文n. 外堡；枪眼；碉堡或其他类似的防御工事
词根词源
barbican (n.)"outer fortification of a city or castle," mid-13c., from Old French barbacane (12c.), a general Romanic word, perhaps ultimately from Arabic or Persian (compare bab-khanah "gate-house"). Watkins identifies it as from Old Iranian *pari-varaka "protective," from *wor-o-, suffixed variant form of PIE root *wer- (5) "to cover" (see wier).
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