大圆 dàyuán great circle; orthodrome Definitions Defs Origin Strokes Stroke Words Sentences Sents dàyuán great circle; orthodrome 大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult圆 圓 yuán noun circle a circle, being a shape where all points on the edge are the same distance from the centerdàyuán the sky 大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult圆 圓 yuán adjective round round; circular; spherical; of the moon, full