凸镜 tūjìng convex mirror Origin Definitions Defs 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.镜 鏡 jìng noun mirror (bound form) mirror; an object used to reflect an image, often made of glass with a metallic backing