丁字钢 dīngzìgāng T-beam Origin Definitions Defs Strokes Stroke Words Sentences Sents 丁字 dīngzì T-shape the character 丁 dīng used to describe a T-shape; T-shaped钢 鋼 gāng noun steel steel; an alloy of iron and carbon that is tougher than cast iron and harder than wrought iron