A body or figure having the shape of a sector; hence, a division or part, a unit. Astronomy. (See quot. 1863.)
| 单词 | θ1172 |
| 释义 | the world > the universe > constellation > comet or meteor > comet > [noun] > head > sector (2) sector1840 A body or figure having the shape of a sector; hence, a division or part, a unit. Astronomy. (See quot. 1863.) jet1847 Astronomy. A thin luminous stream of material emitted by and extending away from the nucleus of a comet. |
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