trilithon
trilithon[trʌɪˈlɪθ(ə)n](亦作 trilith ˈtrʌɪlɪθ)noun- (Archaeology)a megalithic structure consisting of two upright stones and a third across the top as a lintel
(考古)巨石牌坊(两巨石作柱,上架一巨石作梁)
trilithic[-ˈlɪθɪk]adjective语源- mid 18th cent.: from Greek, from tri- 'three' + lithos 'stone'
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