溢流孔 Traditional form: 溢流孔 Pinyin (reading): yìliúkǒng Definitions: bleed hole overflow pipe spill vent Characters: 溢 - full; overflowing 流 - to flow, to drift, to circulate; class 孔 - opening, hole, orifice; great Traditional characters: 溢 - full; overflowing 流 - to flow, to drift, to circulate; class 孔 - opening, hole, orifice; great