堤礁 dījiāo barrier reef Origin Definitions Defs Strokes Stroke Words Sentences Sents 堤 dī dike dike; embankment; levee; a long wall or barrier built to prevent flooding from a river or the sea礁 jiāo noun reef (bound form) a rock or ridge of sand at or near the surface of the water, such as a shoal or submerged rock