大洋龙 dàyánglóng halisaurus Origin Definitions Defs Strokes Stroke Words Sentences Sents 大洋 dàyáng noun ocean The vast body of salt water that covers most of the Earth's surface; specifically refers to any of the major oceans like the 太平洋 tàipíngyáng or 大西洋 dàxīyáng.龙 龍 lóng noun dinosaur (bound form) used in the names of prehistoric reptiles such as dinosaurs or pterosaurs