Vocabulary: nebula - n (pl nebulae or nebulas), cluster of very distant stars, diffuse mass of gas, seen in the night sky as an indistinct patch of light (Oxford Advanced Learner's Vocabulary, Oxford University Press, 1984)
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Vocabulary:
nebula - n (pl nebulae or nebulas), cluster of very distant stars, diffuse mass of gas, seen in the night sky as an indistinct patch of light (Oxford Advanced Learner's Vocabulary, Oxford University Press, 1984)
Vocabulary: nebula - n (pl nebulae or nebulas), cluster of very distant stars, diffuse mass of gas, seen in the night sky as an indistinct patch of light (Oxford Advanced Learner's Vocabulary, Oxford University Press, 1984)