海岱 Traditional form: 海岱 Pinyin (reading): Hǎidài Definitions: Haidai, historical region extending from the Bohai Sea to Mt Tai in Shandong Characters: 海 - sea, ocean; maritime 岱 - the Daishan mountain in Shandong Traditional characters: 海 - sea, ocean; maritime 岱 - the Daishan mountain in Shandong