noun
a science fiction machine that is supposed to transport people or objects into the past or the future (Freq. 2)
• Hypernyms: ↑machine
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noun, pl ⋯ -chines [count]
in stories : a machine that allows people to travel to a time in the past or future
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(in ↑science fiction stories) a machine that enables you to travel in time to the past or the future
Useful english dictionary. 2012.