丁形定規 dīngxíngdìngguī T-square Origin Definitions Defs Strokes Stroke Words Sentences Sents 丁 dīng fourth The fourth of the ten heavenly stems, 天干 tiāngān; also represents the fourth in a sequence, grade, or level.形 xíng nounaffix shape (bound form) shape; form; pattern; configuration定规 定規 dìngguī (bound form) fixed specification (bound form) a fixed size, specification, or standard for manufactured items