time machine

noun

1. a theoretical apparatus that would convey one to the past or future.

time machine

noun

1. (in science fiction) a machine in which people or objects can be transported into the past or the future

Word History and Origins

Origin of time machine¹

First recorded in 1890–95

Example Sentences

“A time machine, you might call it. I wonder if such a thing could exist?”

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“Did you come here in a time machine or something?”

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"Ice cores are like time machines that let scientists take a look at what our planet was like in the past," explained Shackleton, who has worked on several Antarctic drilling expeditions.

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Verifying the existence of an event as an ongoing object would require something like a time machine to go and observe it now.

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It would be interesting to hop in a time machine and find out.

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