Read Edit View history 周日圈 zhōurìquān diurnal circle Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 周日圈 zhōurìquān diurnal circle noun · (astronomy) diurnal circle 恒星在空中的视运动轨迹被称为周日圈。 Edit Delete References Add reference No references for this word.