passage grave
noun
- Archaeology a prehistoric megalithic burial chamber of a type found chiefly in western Europe, with a passage leading to the exterior. Passage graves were originally covered by a mound, which in many cases has disappeared, and most date from the Neolithic period.【考古】长廊墓（一种史前墓室, 由巨石砌成, 有一长长的墓道通向墓外, 主要发现于西欧; 此类墓最初有大土堆覆盖, 现在土堆大多已消失; 大部分始于新石器时代）。