Last Updated:2025/11/19
Used other than figuratively or idiomatically: see deep, sleep. / (rare, fiction) Artificially induced hibernation in humans for the purpose of long distance space travel.
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deep sleep
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Source Word
deep sleep
Noun
countable
uncountable
rare
Japanese Meaning
深い眠り / (稀に、フィクションにおいて)長距離宇宙旅行のための人工的な冬眠状態
( plural )