| 单词 | quadrant |
| 释义 | quadrant —quadrantal /kwo dran"tl/, adj. —quadrantlike, adj. /kwod"reuhnt/, n. 1. a quarter of a circle; an arc of 90°. 2. the area included between such an arc and two radii drawn one to each extremity. 3. something shaped like a quarter of a circle, as a part of a machine. 4. Geom. , Astron. one of the four parts into which a plane, as the face of a heavenly body, is divided by two perpendicular lines, numbered counterclockwise from upper right: the first quadrant of the moon. 5. an instrument, usually containing a graduated arc of 90°, used in astronomy, navigation, etc., for measuring altitudes. 6. Astrol. one of the four quarters of the horoscope: determined by the ascendant, nadir, descendant, and midheaven and numbered counterclockwise from the ascendant. 7. Furniture. one of two metal sliding pieces, of quadrant form, used to support the fall front of a desk from above. [1350-1400; ME < L quadrant- (s. of quadrans) fourth part] |
| 随便看 |
英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。