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A hypothetical or imagined medium extending throughout space like the ‘ether’ but acting on a smaller scale or order of magnitude.
Early 20th century. From sub- + ether.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。