time machine

American  

noun

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

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time machine British  

noun

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

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Etymology

Origin of time machine

First recorded in 1890–95

Example Sentences

Imagine what it would be like to step in a time machine and jump 50 years into the future.

From Barron's

Going through the 200,000 hours of video in the vault is like a trip in a show business time machine where you’ll find:

From Los Angeles Times

“I don’t think anyone sent a bunch of babies in a time machine,” Angela said, speaking very precisely.

From Literature

Imagine a time machine, like Doc Brown’s DeLorean in “Back to the Future,” that could transport us to the best possible times in history to invest.

From The Wall Street Journal

Both a discovery and a reemergence, “Once Upon a Time in Harlem” is like a time machine moving in multiple directions at once.

From Los Angeles Times