凸岸 tū'àn convex bank Definitions Defs Origin Strokes Stroke Words Sentences Sents 凸 tū verb protruding to stick out or protrude; convex; describes a male connector. This is the opposite of 凹 āo.岸 àn noun bank shore; bank; coast; the land along the edge of a body of water such as a river, lake, or sea
