| 释义 |
| | | | NOUN | | | | | /məˈrɪdiən/ | | | | | 1 | one of the imaginary lines that goes around the Earth from the North Pole to the South Pole . These are used for measuring position , time etc. 子午线（从北极到南极环绕地球的一条假想线） | | 1a | this line represented as a line on a map （地图上的）子午线，经线 | | the Greenwich meridian 格林威治子午线 | | | | | | 2 | an imaginary line that connects points of energy in your body , used by doctors who treat people using acupuncture （针灸中的）经线 | | |