拱墩 Traditional form: 拱墩 Pinyin (reading): gǒngdūn Definitions: pillar of a vault Characters: 拱 - to salute, to bow; arched; arch 墩 - stone block; heap, mound; pier Traditional characters: 拱 - to salute, to bow; arched; arch 墩 - stone block; heap, mound; pier