Astronomy. The shadow cast by the earth or moon as visible in an eclipse; now spec. that portion in which the shadow is complete, as contrasted…
单词 | θ918 |
释义 | the world > the universe > sun > sunlight > [noun] > eclipse > umbra (1) umbra1679 Astronomy. The shadow cast by the earth or moon as visible in an eclipse; now spec. that portion in which the shadow is complete, as contrasted… |
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