蔡甸 Traditional form: 蔡甸 Pinyin (reading): Càidiàn Definitions: Caidian district of Wuhan city 武漢市/武汉市 ( Wǔhànshì), Hubei Characters: 蔡 - a species of tortoise; surname 甸 - suburbs of the capital; to govern; crops Traditional characters: 蔡 - a species of tortoise; surname 甸 - suburbs of the capital; to govern; crops